CN111245258A - Positive and negative dual-output direct-current power supply for environmental protection - Google Patents
Positive and negative dual-output direct-current power supply for environmental protection Download PDFInfo
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- CN111245258A CN111245258A CN202010127322.8A CN202010127322A CN111245258A CN 111245258 A CN111245258 A CN 111245258A CN 202010127322 A CN202010127322 A CN 202010127322A CN 111245258 A CN111245258 A CN 111245258A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0019—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being load current fluctuations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses an environment-friendly positive and negative dual-output direct-current power supply. This positive negative dual output DC power supply is used in environmental protection includes: the circuit breaker, reactor, contactor, rectifier, wave filter, first full-bridge inverter, first high frequency transformer, positive high voltage rectifier circuit that establish ties in proper order to and second full-bridge inverter, second high frequency transformer and the negative high voltage rectifier circuit that establish ties in proper order, wherein, the output of wave filter still is connected with the input of second full-bridge inverter, and the input and the alternating current of circuit breaker are connected, and positive high voltage rectifier circuit's output and negative high voltage rectifier circuit output do respectively positive output and the negative output of positive negative dual output DC power supply are used in the environmental protection. The environment-friendly positive and negative dual-output direct-current power supply has the characteristics of small volume, light weight, integrated structure manufacturing, stable output, high voltage, large current, strong adaptability to high-power working conditions, high efficiency and the like.
Description
Technical Field
The invention relates to the technical field of direct-current power supplies, in particular to an environment-friendly positive and negative dual-output direct-current power supply.
Background
In the environmental protection field, dust removal, defogging, flue gas treatment equipment in power plant, steel mill and the industrial production processing enterprise all adopt single output negative high voltage power supply to supply power basically. However, the single-output negative high-voltage power supply and the equipment adapted to the single-output negative high-voltage power supply have unsatisfactory work efficiency and effect of the equipment for dust removal, defogging and flue gas treatment, and currently, an efficient environment-friendly power supply is urgently needed to improve the work efficiency.
Disclosure of Invention
The invention aims to provide an efficient environment-friendly positive and negative dual-output direct-current power supply.
In order to achieve the purpose, the invention provides the following scheme:
an environment-friendly positive-negative dual-output direct-current power supply comprises: the circuit breaker, the reactor, the contactor, the rectifier, the filter, the first full-bridge inverter, the second full-bridge inverter, the first high-frequency transformer, the second high-frequency transformer, the positive high-voltage rectification circuit and the negative high-voltage rectification circuit are sequentially connected in series, the output end of the filter is further connected with the input end of the second full-bridge inverter, and the second full-bridge inverter, the second high-frequency transformer and the negative high-voltage rectification circuit are sequentially connected in series; the input end of the circuit breaker is used for being connected with alternating current, and the output end of the positive high-voltage rectifying circuit and the output end of the negative high-voltage rectifying circuit are respectively the positive output end and the negative output end of the direct-current power supply.
Optionally, the dc power supply further includes: the device comprises a first sampling feedback circuit, a second sampling feedback circuit, a DSP control circuit and a pulse drive protection circuit; the input end of the first sampling feedback circuit and the input end of the second sampling feedback circuit are respectively connected with the output end of the positive high-voltage rectification circuit and the output end of the negative high-voltage rectification circuit, the output end of the first sampling feedback circuit and the output end of the second sampling feedback circuit are both connected with the input end of the DSP control circuit, the output end of the DSP control circuit is connected with the input end of the pulse drive protection circuit, and the output end of the pulse drive protection circuit is respectively connected with the first full-bridge inverter and the second full-bridge inverter in a drive mode; the DSP control circuit determines the working condition of the load according to the signals collected by the first sampling feedback circuit and the second sampling feedback circuit, tracks the load, and adjusts the output power of the first full-bridge inverter and the second full-bridge inverter through the pulse drive protection circuit to keep the output voltage of the direct-current power supply below a flashover voltage.
Optionally, the DSP control circuit further determines load short circuit, flashover, and open circuit faults according to the signals collected by the first sampling feedback circuit and the second sampling feedback circuit, and sends out corresponding protection signals.
Optionally, the output end of the DSP control circuit is in control connection with the contactor, and when a fault occurs, the DSP control circuit controls the contactor to be disconnected.
Optionally, the dc power supply further includes a temperature detection circuit, the temperature detection circuit is used for detecting the temperatures of the first full-bridge inverter, the second full-bridge inverter, the first high-frequency transformer and the second high-frequency transformer, and the output end of the temperature detection circuit is connected with the input end of the DSP control circuit.
Optionally, the dc power supply further includes a cooling fan, and an output end of the DSP control circuit is connected to the cooling fan in a control manner; the DSP control circuit controls the start and stop of the cooling fan according to the temperature information detected by the temperature detection circuit; and the cooling fan is used for blowing air to the first full-bridge inverter, the second full-bridge inverter, the first high-frequency transformer and the second high-frequency transformer for cooling.
Optionally, the DSP control circuit sends a temperature alarm signal when the temperature information detected by the temperature detection circuit is higher than a set threshold.
Optionally, the dc power supply further includes a 485 communication circuit, and the DSP control circuit is in communication connection with the remote monitoring system through the 485 communication circuit.
Optionally, the dc power supply further includes an auxiliary power supply circuit, an input end of the auxiliary power supply circuit is connected with an output end of the circuit breaker, the auxiliary power supply circuit obtains power from an output end of the circuit breaker, and the power is obtained after voltage reduction, rectification, filtering and voltage stabilization through the DSP control circuit, the cooling fan, the temperature detection circuit, the pulse drive protection circuit, the first sampling feedback circuit and the second sampling feedback circuit provide a control power supply.
Optionally, the dc power supply further includes an auxiliary power supply circuit, an input end of the auxiliary power supply circuit is connected to an output end of the circuit breaker, and the auxiliary power supply circuit obtains power from an output end of the circuit breaker and supplies power to the 485 communication circuit after voltage reduction, rectification, filtering and voltage stabilization.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the environment-friendly positive and negative dual-output direct-current power supply comprises a circuit breaker, a reactor, a contactor, a rectifier, a filter, a first full-bridge inverter, a first high-frequency transformer and a positive high-voltage rectification circuit which are sequentially connected in series, wherein the output end of the filter is also connected with the input end of a second full-bridge inverter, and the second full-bridge inverter, the second high-frequency transformer and a negative high-voltage rectification circuit are sequentially connected in series, so that the environment-friendly positive and negative dual-output direct-current power supply is formed, alternating current is connected with the input end of the circuit breaker, and the output end of the positive high-voltage rectification circuit and the output end of the negative high-. The environment-friendly positive and negative dual-output direct-current power supply is provided with the adaptive dust removal equipment, defogging equipment or flue gas treatment equipment and the like, and can efficiently complete the work of dust removal, defogging or flue gas treatment and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an environmentally friendly positive-negative dual-output DC power supply according to an embodiment of the present invention; wherein:
1. the circuit breaker, 2, the reactor, 3, the contactor, 4, the rectifier, 5, the filter, 6, first full bridge inverter, 7, first high frequency transformer, 8, positive high voltage rectifier circuit, 9, the load, 10, auxiliary power supply circuit, 11, the cooling blower, 12, 485 communication circuit, 13, the temperature detection circuit, 14, the pulse drive protection circuit, 15, the DSP control circuit, 16, the second full bridge inverter, 17, the second high frequency transformer, 18, first sample feedback circuit, 19, negative high voltage rectifier circuit, 20, the second sample feedback circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an environment-friendly positive and negative dual-output direct-current power supply, which comprises the following components in percentage by weight as shown in figure 1: the circuit breaker comprises a circuit breaker 1, a reactor 2, a contactor 3, a rectifier 4, a filter 5, a first full-bridge inverter 6, a second full-bridge inverter 16, a first high-frequency transformer 7, a second high-frequency transformer 17, a positive high-voltage rectification circuit 8 and a negative high-voltage rectification circuit 19, wherein the circuit breaker 1, the reactor 2, the contactor 3, the rectifier 4, the filter 5, the first full-bridge inverter 6, the first high-frequency transformer 7 and the positive high-voltage rectification circuit 8 are sequentially connected in series, the output end of the filter 5 is further connected with the input end of the second full-bridge inverter 16, and the second full-bridge inverter 16, the second high-frequency transformer 17 and the negative high-voltage rectification circuit 19 are sequentially connected in series; the input end of the circuit breaker 1 is used for being connected with alternating current, and the output end of the positive high-voltage rectifying circuit 8 and the output end of the negative high-voltage rectifying circuit 19 are respectively the positive output end and the negative output end of the direct current power supply.
In the embodiment, a three-phase 380 v 50 hz alternating current voltage is sent to an input end of a rectifier 4 through a circuit breaker 1, a reactor 2 and a contactor 3, a 530 v direct current voltage is obtained at an output end of the rectifier 4, high-frequency harmonics are filtered by a filter 5 to obtain a 530 v stable direct current voltage, then the 530 v direct current voltage is converted into a sinusoidal alternating current voltage with the frequency of 40 khz to 80 khz and the peak value of 530 v through a first full-bridge inverter 6 and a second full-bridge inverter 16, the sinusoidal alternating current voltage is boosted through a first high-frequency transformer 7 and a second high-frequency transformer 17 and rectified through a positive high-voltage rectifying circuit 8 and a negative high-voltage rectifying circuit 19, and 70-150 kv stable positive and negative direct current voltages are obtained.
The environment-friendly positive-negative dual-output direct-current power supply in this embodiment may further include: a first sampling feedback circuit 18, a second sampling feedback circuit 20, a DSP control circuit 15 and a pulse drive protection circuit 14; wherein, the input end of the first sampling feedback circuit 18 and the input end of the second sampling feedback circuit 20 are respectively connected with the output end of the positive high-voltage rectification circuit 8 and the output end of the negative high-voltage rectification circuit 19, the output end of the first sampling feedback circuit 18 and the output end of the second sampling feedback circuit 20 can be respectively connected with the first signal input end and the second signal input end of the DSP control circuit 15, the output end of the DSP control circuit 15 is connected with the input end of the pulse drive protection circuit 14, the output end of the pulse drive protection circuit 14 is respectively connected with the first full-bridge inverter 6 and the second full-bridge inverter 16 in a drive manner, the DSP control circuit 15 determines the working condition of the load 9 according to the signals collected by the first sampling feedback circuit 18 and the second sampling feedback circuit 20, and tracks the load 9, and the pulse driving protection circuit 14 regulates the output power of the first full-bridge inverter 6 and the second full-bridge inverter 16.
In this embodiment, the first sampling feedback circuit 18 and the second sampling feedback circuit 20 respectively collect current and voltage signals reflecting the working condition of the load 9 from the output ends of the positive high-voltage rectification circuit 8 and the negative high-voltage rectification circuit 19, and send the signals to the DSP control circuit 15 after amplitude limiting, filtering and isolating, and the DSP control circuit 15 adopts a Δ u/Δ i inflection point voltage and optimal current ratio control mode using a spark initiation point as a parameter value according to the change of the voltage and current of the load 9, so as to judge the working condition of the load 9, track the change of the load 9, and automatically adjust the output power, so that the output voltage always works below a flashover voltage.
In an embodiment, the DSP control circuit 15 may further determine a short circuit, a flashover, or an open circuit fault of the load 9 according to the signals collected by the first sampling feedback circuit 18 and the second sampling feedback circuit 20, and issue corresponding protection signals.
In practical application, the output end of the DSP control circuit 15 may be in control connection with the contactor 3, and when there is a fault signal and a start stop signal, the DSP control circuit 15 sends a signal to control the contactor 3 to be closed or opened.
In an embodiment, the positive-negative dual-output dc power supply for environmental protection may further include a temperature detection circuit 13, the temperature detection circuit 13 is configured to detect the temperatures of the first full-bridge inverter 6, the second full-bridge inverter 16, the first high-frequency transformer 7 and the second high-frequency transformer 17, and an output end of the temperature detection circuit 13 is connected to an input end of the DSP control circuit 15. In practical application, the environment-friendly positive and negative dual-output dc power supply may further include a cooling fan 11, an output end of the DSP control circuit 15 is in control connection with the cooling fan 11, and the cooling fan 11 is configured to blow air to the first full-bridge inverter 6, the second full-bridge inverter 16, the first high-frequency transformer 7, and the second high-frequency transformer 17 for cooling; the DSP control circuit 15 controls the start and stop of the cooling fan 11 according to the temperature information detected by the temperature detection circuit 13. As an alternative embodiment, the DSP control circuit 15 may also send an over-temperature alarm signal when the temperature exceeds the upper limit set value, and even control the contactor 3 to open.
In this embodiment, the positive and negative dual output dc power supply for environmental protection may further include a 485 communication circuit 12, and the DSP control circuit 15 transmits the current working condition and parameters of the power supply to the upper computer for display through the 485 communication circuit 12 being connected to the remote monitoring system, and receives and executes various control commands sent by the upper computer.
In this embodiment, positive negative dual output dc power supply for environmental protection can also include auxiliary power supply circuit 10, auxiliary power supply circuit 10's input is connected with circuit breaker 1's output, auxiliary power supply circuit 10's output is connected with cooling blower 11, temperature detection circuit 13, pulse drive protection circuit 14, first sample feedback circuit 18, second sample feedback circuit 20, 485 communication circuit 12, DSP control circuit 15 respectively. The auxiliary power circuit 10 obtains power from the output end of the circuit breaker 1, and provides control power for the cooling fan 11, the temperature detection circuit 13, the pulse drive protection circuit 14, the first sampling feedback circuit 18, the second sampling feedback circuit 20, the 485 communication circuit 12 and the DSP control circuit 1 after voltage reduction, rectification, filtering and voltage stabilization.
The environment-friendly positive and negative dual-output high-frequency high-power direct-current power supply has the characteristics of small size, light weight and manufacture of an integrated structure, can output stable positive and negative direct currents, and has the advantages of high voltage, high current, strong adaptability to high-power working conditions, high efficiency and the like. Can be widely applied to the field of environmental protection, dust removal, defogging and smoke treatment of power plants, steel mills and industrial production and processing enterprises.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. An environment-friendly positive-negative dual-output direct-current power supply is characterized by comprising: the circuit breaker, the reactor, the contactor, the rectifier, the filter, the first full-bridge inverter, the second full-bridge inverter, the first high-frequency transformer, the second high-frequency transformer, the positive high-voltage rectification circuit and the negative high-voltage rectification circuit are sequentially connected in series, the output end of the filter is further connected with the input end of the second full-bridge inverter, and the second full-bridge inverter, the second high-frequency transformer and the negative high-voltage rectification circuit are sequentially connected in series; the input end of the circuit breaker is used for being connected with alternating current, and the output end of the positive high-voltage rectifying circuit and the output end of the negative high-voltage rectifying circuit are respectively the positive output end and the negative output end of the direct-current power supply.
2. The environmentally friendly positive-negative dual-output DC power supply of claim 1, further comprising: the device comprises a first sampling feedback circuit, a second sampling feedback circuit, a DSP control circuit and a pulse drive protection circuit; the input end of the first sampling feedback circuit and the input end of the second sampling feedback circuit are respectively connected with the output end of the positive high-voltage rectification circuit and the output end of the negative high-voltage rectification circuit, the output end of the first sampling feedback circuit and the output end of the second sampling feedback circuit are both connected with the input end of the DSP control circuit, the output end of the DSP control circuit is connected with the input end of the pulse drive protection circuit, and the output end of the pulse drive protection circuit is respectively connected with the first full-bridge inverter and the second full-bridge inverter in a drive mode; the DSP control circuit determines the working condition of the load according to the signals collected by the first sampling feedback circuit and the second sampling feedback circuit, tracks the load, and adjusts the output power of the first full-bridge inverter and the second full-bridge inverter through the pulse drive protection circuit to keep the output voltage of the direct-current power supply below a flashover voltage.
3. The environmentally friendly positive-negative dual-output direct-current power supply according to claim 2, wherein the DSP control circuit further determines load short-circuit, flashover, and open-circuit faults according to the signals collected by the first sampling feedback circuit and the second sampling feedback circuit, and sends out corresponding protection signals.
4. The environmentally friendly positive-negative dual-output direct current power supply as claimed in claim 3, wherein the output end of the DSP control circuit is in control connection with the contactor, and when a fault occurs, the DSP control circuit controls the contactor to be disconnected.
5. The environmentally friendly positive-negative dual-output DC power supply as recited in claim 2, further comprising a temperature detection circuit for detecting the temperature of the first full-bridge inverter, the second full-bridge inverter, the first high-frequency transformer and the second high-frequency transformer, wherein the output terminal of the temperature detection circuit is connected to the input terminal of the DSP control circuit.
6. The environment-friendly positive-negative dual-output direct-current power supply as claimed in claim 5, wherein the direct-current power supply further comprises a cooling fan, and the output end of the DSP control circuit is in control connection with the cooling fan; the DSP control circuit controls the start and stop of the cooling fan according to the temperature information detected by the temperature detection circuit; and the cooling fan is used for blowing air to the first full-bridge inverter, the second full-bridge inverter, the first high-frequency transformer and the second high-frequency transformer for cooling.
7. The environmentally friendly positive-negative dual-output DC power supply as recited in claim 5, wherein the DSP control circuit sends out a temperature alarm signal when the temperature information detected by the temperature detection circuit is higher than a set threshold.
8. The environmentally friendly positive-negative dual-output DC power supply as recited in claim 2, further comprising a 485 communication circuit, wherein the DSP control circuit is in communication connection with a remote monitoring system through the 485 communication circuit.
9. The environment-friendly positive-negative dual-output direct-current power supply as defined in claim 6, further comprising an auxiliary power supply circuit, wherein an input end of the auxiliary power supply circuit is connected with an output end of the circuit breaker, and the auxiliary power supply circuit obtains power from the output end of the circuit breaker and provides control power for the DSP control circuit, the cooling fan, the temperature detection circuit, the pulse driving protection circuit, the first sampling feedback circuit and the second sampling feedback circuit after voltage reduction, rectification, filtering and voltage stabilization.
10. The environmentally friendly positive-negative dual-output DC power supply as recited in claim 8, further comprising an auxiliary power circuit, wherein an input terminal of the auxiliary power circuit is connected to an output terminal of the circuit breaker, and the auxiliary power circuit obtains power from the output terminal of the circuit breaker and supplies power to the 485 communication circuit after voltage reduction, rectification, filtering and voltage stabilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010127322.8A CN111245258A (en) | 2020-02-28 | 2020-02-28 | Positive and negative dual-output direct-current power supply for environmental protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010127322.8A CN111245258A (en) | 2020-02-28 | 2020-02-28 | Positive and negative dual-output direct-current power supply for environmental protection |
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| CN111245258A true CN111245258A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010127322.8A Pending CN111245258A (en) | 2020-02-28 | 2020-02-28 | Positive and negative dual-output direct-current power supply for environmental protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362105A (en) * | 2022-01-12 | 2022-04-15 | 苏州清越光电科技股份有限公司 | Prevent overheated high-power frequency conversion equipment |
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| CN201904734U (en) * | 2010-12-17 | 2011-07-20 | 合肥美亚光电技术股份有限公司 | Bidirectional symmetrical voltage-multiplying rectification circuit |
| CN203261240U (en) * | 2013-05-29 | 2013-10-30 | 秦皇岛市桑格电气控制设备有限公司 | High-frequency high-voltage soft stabilizing power supply used for electrostatic dust collector |
| US8797771B1 (en) * | 2011-08-31 | 2014-08-05 | Alfred E. Mann Foundation For Scientific Research | Capacitor based AC to DC step up converter |
| JP2019022246A (en) * | 2017-07-11 | 2019-02-07 | オムロン株式会社 | Dc/dc converter, power conditioner, and electrical power system |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201904734U (en) * | 2010-12-17 | 2011-07-20 | 合肥美亚光电技术股份有限公司 | Bidirectional symmetrical voltage-multiplying rectification circuit |
| US8797771B1 (en) * | 2011-08-31 | 2014-08-05 | Alfred E. Mann Foundation For Scientific Research | Capacitor based AC to DC step up converter |
| CN203261240U (en) * | 2013-05-29 | 2013-10-30 | 秦皇岛市桑格电气控制设备有限公司 | High-frequency high-voltage soft stabilizing power supply used for electrostatic dust collector |
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| CN114362105A (en) * | 2022-01-12 | 2022-04-15 | 苏州清越光电科技股份有限公司 | Prevent overheated high-power frequency conversion equipment |
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Application publication date: 20200605 |