CN202068345U - Circuit capable of converting single power supply into positive and negative power supplies - Google Patents
Circuit capable of converting single power supply into positive and negative power supplies Download PDFInfo
- Publication number
- CN202068345U CN202068345U CN2011200539305U CN201120053930U CN202068345U CN 202068345 U CN202068345 U CN 202068345U CN 2011200539305 U CN2011200539305 U CN 2011200539305U CN 201120053930 U CN201120053930 U CN 201120053930U CN 202068345 U CN202068345 U CN 202068345U
- Authority
- CN
- China
- Prior art keywords
- circuit
- negative
- positive
- voltage
- pulse voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model relates to a circuit capable of converting a single power supply into positive and negative power supplies, which comprises an oscillating circuit, two inverting circuits, two pushing circuits and a rectification and filter circuit, wherein the oscillating circuit is used for converting a DC (Direct Current) voltage of the single-phase power supply into a positive and negative pulse voltage, the reverting circuits are connected in the positive and negative pulse voltage converted by the oscillating circuit and output positive and negative pulse voltages, the pushing circuit is connected into pulse voltages with opposite phases output by the reverting circuits and outputs amplified positive and negative pulse voltages, and the rectification and filter circuit is connected into the positive and negative pulse voltage amplified by the pushing circuit and converts the voltage into a stable positive-negative voltage. The circuit has the beneficial effects that as the design of the oscillating circuit is adopted, the influence of the change of a power supply to the oscillating frequency can be reduced, and the dynamic power consumption of circuit working can be reduced; as inverters are connected in parallel, the output current is increased, so that the anti-interference capability of the circuit is strengthened; and the positive half and negative half cycles of an input pulse voltage signal are respectively amplified by three triodes, so as to synthetize a pulse voltage signal which is amplified to two to three hundred times.
Description
Technical field
The utility model relates to electricity field, relates in particular to a kind of single supply conversion positive-negative power circuit.
Background technology
During general sound equipment electrical work, need provide positive-negative power.During this time if single power supply, will certainly influence sound equipment electrical equipment and other need the electrical equipment of positive-negative power.Usually on delivery vehicles such as automobile, steamer, train, can only use storage battery power supply, and storage battery only provides direct voltage, can not use as positive-negative power, need bring numerous inconvenience with the use of the instrument of positive-negative power work to some.
The utility model content
At the problems referred to above, the purpose of this utility model is to provide a kind of single supply conversion positive-negative power circuit that single supply can be converted to positive-negative power.
For achieving the above object, single supply conversion positive-negative power circuit described in the utility model comprises: oscillating circuit, two negative circuits, two promote circuit and rectification and filter circuit, wherein,
Oscillating circuit is converted to positive negative pulse stuffing voltage with the direct voltage of single supply;
Two negative circuits, the input of first negative circuit is connected the pulse voltage output of described oscillating circuit, with the anti-phase output of the phase place of described pulse voltage, the input of second negative circuit is connected the reversed-phase output of described first negative circuit, with the described pulse voltage anti-phase output of phase place once more of anti-phase output;
Two promote circuit, and first promotes the reversed-phase output that circuit is connected described first negative circuit, and the described pulse voltage of anti-phase output is for the first time amplified; Second promotes the reversed-phase output that circuit is connected described second negative circuit; To amplify through anti-phase described pulse voltage for the second time;
Rectification and filter circuit link to each other with the described first amplification end that promotes the circuit and the second promotion circuit respectively, and the positive negative pulse stuffing voltage transitions that promotes after circuit amplifies is become stable generating positive and negative voltage.
Preferably, described oscillating circuit comprises first resistance, second resistance, first electric capacity and two CMOS inverters, wherein, one end of second resistance is connected between two CMOS inverters by lead, the other end is connected between first resistance and first electric capacity by lead, first resistance is connected with a CMOS inverter, and first electric capacity is connected with the 2nd CMOS inverter and is connected with the first negative circuit input.
Described first negative circuit and second negative circuit constitute by two CMOS inverters that are connected in parallel.
The described first promotion circuit and second promotes circuit and constitutes by two common collector amplifying circuits.
The beneficial effects of the utility model are:
1, adopts the design of oscillating circuit, reduced the influence of power source change, also reduced the dynamic power consumption of circuit working simultaneously frequency of oscillation;
2, adopt CMOS inverter connected mode in parallel in twos to increase output current, the antijamming capability of circuit own is strengthened, the supply voltage scope maintains 3～20V;
3, by two triodes difference common-collector amplifiers parallel with one another, amplify the positive and negative half cycle of input pulse voltage signal, synthetic then the amplification reaches 100 times pulse voltage signal.
Description of drawings
Fig. 1 is the circuit diagram of single supply conversion positive-negative power circuit described in the utility model.
Embodiment
Below in conjunction with Figure of description the utility model is further described.
As shown in Figure 1, a kind of single supply conversion positive-negative power circuit comprises that oscillating circuit 1, two negative circuits, two promote circuit and rectification and filter circuit 6; Wherein,
Oscillating circuit 1 is converted to positive negative pulse stuffing voltage with the direct voltage of single supply;
Two negative circuits, the input of first negative circuit 2 is connected the pulse voltage output of described oscillating circuit 1, with the anti-phase output of the phase place of described pulse voltage, the input of second negative circuit 3 is connected the reversed-phase output of described first negative circuit 2, with the described pulse voltage anti-phase output of phase place once more of anti-phase output;
Two promote circuit, and first promotes the reversed-phase output that circuit 4 is connected described first negative circuit 2, and the described pulse voltage of anti-phase output is for the first time amplified; Second promotes the reversed-phase output that circuit 5 is connected described second negative circuit 3, will amplify through anti-phase described pulse voltage for the second time;
Rectification and filter circuit 6 link to each other with the described first amplification end that promotes the circuit 4 and the second promotion circuit 5 respectively, and the positive negative pulse stuffing voltage transitions that promotes after circuit amplifies is become stable generating positive and negative voltage.
As the further embodiment of the utility model, described oscillating circuit 1 comprises first resistance 7, second resistance 8, first electric capacity 9 and two CMOS inverters, wherein, one end of second resistance 8 is connected between two CMOS inverters by lead, the other end is connected between first resistance 7 and first electric capacity 9 by lead, first resistance 7 is connected with a CMOS inverter 10, and first electric capacity 9 is connected with the 2nd CMOS inverter 11 and is connected with first negative circuit, 2 inputs.
As the further embodiment of the utility model, the input of first negative circuit 2 is connected with the output of oscillating circuit 1, the output of first negative circuit 2 is connected with the input of second negative circuit 3, and described first negative circuit 2 and second negative circuit 3 constitute by two CMOS inverters that are connected in parallel.
As the further embodiment of the utility model, first input that promotes circuit 4 is connected with the output of first negative circuit 2, second input that promotes circuit 5 is connected with the output of second negative circuit 3, and the described first promotion circuit 4 and second promotes circuit 5 and constitutes by two common collector amplifying circuits.Wherein preferred one of the triode in the amplifying circuit is a B647 triode 13, and another is a D667 triode 12.
As the further embodiment of the utility model, rectification and filter circuit 6 are common circuit, and its any circuit mode that plays rectification and filter action all is suitable in this circuit.
Operation principle of the present utility model is: in oscillating circuit, because the voltage at first electric capacity 9 two ends when charging can not suddenly change, making in the circuit current potential of parts end positions that height takes place changes, repeat to change to form and vibrate, and convert the direct voltage of the single supply that inserts to positive negative pulse stuffing voltage, when this positive negative pulse stuffing voltage through first negative circuit 2, two anti-phase pulse voltages of CMOS inverter output in first negative circuit 2, increased output current simultaneously, directly carried out processing and amplifying and output through the first promotion circuit 4 through the pulse voltage part of once anti-phase output; Some is through second negative circuit 3, two CMOS inverters in second negative circuit 3 are exported anti-phase pulse voltage once more, increased output current simultaneously, carried out processing and amplifying and output through the second promotion circuit 5 through the pulse voltage of anti-phase output for the second time.
When promoting circuit through the anti-phase pulse voltage process after the negative circuit output, because every group of triode all is B647 triodes 13, a D667 triode 12 is formed, and D667 triode 12 amplifies the positive half cycle of input pulse voltage, B647 triode 13 amplifies the negative half period of input pulse voltage, the pulse voltage of (reaching 100 times) is amplified in their synthetic backs for electric current, therefore can promote circuit 4 from first respectively through once anti-phase pulse voltage with through twice anti-phase pulse voltage, second promotes to export in the circuit 5 and enters in rectification and the filter circuit 6, is issued to and exports stable generating positive and negative voltage in rectification and filter action.
More than; it only is preferred embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claim was defined.
Claims (4)
1. single supply conversion positive-negative power circuit is characterized in that: it comprises,
Oscillating circuit (1) is converted to positive negative pulse stuffing voltage with the direct voltage of single supply;
Two negative circuits, the input of first negative circuit (2) is connected the pulse voltage output of described oscillating circuit (1), with the anti-phase output of the phase place of described pulse voltage, the input of second negative circuit (3) is connected the reversed-phase output of described first negative circuit (2), with the described pulse voltage anti-phase output of phase place once more of anti-phase output;
Two promote circuit, and first promotes the reversed-phase output that circuit (4) is connected described first negative circuit (2), and the described pulse voltage of anti-phase (2) output is amplified for the first time; Second promotes the reversed-phase output that circuit (5) is connected described second negative circuit (3), will amplify through anti-phase described pulse voltage for the second time;
Rectification and filter circuit (6) link to each other with the described first amplification end that promotes the circuit (4) and the second promotion circuit (5) respectively, and the positive negative pulse stuffing voltage transitions that promotes after circuit amplifies is become stable generating positive and negative voltage.
2. single supply conversion positive-negative power circuit according to claim 1, it is characterized in that: described oscillating circuit (1) comprises first resistance (7), second resistance (8), first electric capacity (9) and two CMOS inverters; Wherein,
One end of second resistance (8) is connected between two CMOS inverters, the other end is connected between first resistance (7) and first electric capacity (9), first resistance (7) is connected with a CMOS inverter (10), and first electric capacity (9) is connected with the 2nd CMOS inverter (11) and is connected with first negative circuit (2) input.
3. single supply conversion positive-negative power circuit according to claim 1, it is characterized in that: described first negative circuit (2) and second negative circuit (3) constitute by two CMOS inverters that are connected in parallel.
4. single supply conversion positive-negative power circuit according to claim 1, it is characterized in that: the described first promotion circuit (4) and second promotes circuit (5) and constitutes by two common collector amplifying circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200539305U CN202068345U (en) | 2011-03-03 | 2011-03-03 | Circuit capable of converting single power supply into positive and negative power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200539305U CN202068345U (en) | 2011-03-03 | 2011-03-03 | Circuit capable of converting single power supply into positive and negative power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202068345U true CN202068345U (en) | 2011-12-07 |
Family
ID=45062195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200539305U Expired - Fee Related CN202068345U (en) | 2011-03-03 | 2011-03-03 | Circuit capable of converting single power supply into positive and negative power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202068345U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769379A (en) * | 2012-07-23 | 2012-11-07 | 孙坚 | Positive and negative voltage generation circuit applicable to silicon-on-insulator (SOI) process |
| CN103780084A (en) * | 2012-10-22 | 2014-05-07 | 中国地质科学院地质研究所 | Double-end-outputting bipolarity power supply |
| CN109245529A (en) * | 2018-10-24 | 2019-01-18 | 广州金升阳科技有限公司 | A kind of generating positive and negative voltage output power supply circuit |
-
2011
- 2011-03-03 CN CN2011200539305U patent/CN202068345U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769379A (en) * | 2012-07-23 | 2012-11-07 | 孙坚 | Positive and negative voltage generation circuit applicable to silicon-on-insulator (SOI) process |
| WO2014015768A1 (en) * | 2012-07-23 | 2014-01-30 | 广州慧智微电子有限公司 | Positive/negative voltage generation circuit in silicon-on-insulator process |
| CN102769379B (en) * | 2012-07-23 | 2015-04-15 | 广州慧智微电子有限公司 | Positive and negative voltage generation circuit applicable to silicon-on-insulator (SOI) process |
| CN103780084A (en) * | 2012-10-22 | 2014-05-07 | 中国地质科学院地质研究所 | Double-end-outputting bipolarity power supply |
| CN103780084B (en) * | 2012-10-22 | 2016-07-06 | 中国地质科学院地质研究所 | A kind of both-end output bipolar power supply |
| CN109245529A (en) * | 2018-10-24 | 2019-01-18 | 广州金升阳科技有限公司 | A kind of generating positive and negative voltage output power supply circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103036285B (en) | A kind of super capacitor charging circuit | |
| CN202068345U (en) | Circuit capable of converting single power supply into positive and negative power supplies | |
| CN103701360A (en) | Piezoelectric type sound generator | |
| CN204439680U (en) | A kind of normalized current source of AC/DC | |
| CN204836095U (en) | Expansive flows circuit is put to fortune that can export positive negative voltage | |
| CN203941226U (en) | Adopt the N of dual power supply to hold single resistor current circuit for detecting | |
| CN104348431B (en) | Common-mode feedback differential amplification circuit, method and integrated circuit | |
| CN102707106B (en) | Electric power subharmonic digital signal source | |
| CN103176143A (en) | Energy-saving aging circuit of inverter | |
| TW201407917A (en) | Household power parallel converter applied to solar power generation system with maximum power tracking effect | |
| CN204068284U (en) | A kind of photovoltaic energy storage mixing converter system | |
| CN102654970B (en) | Grating drive circuit and 3D (three-dimensional) display | |
| CN206892708U (en) | A kind of delay circuit with temperature-compensating | |
| CN204271971U (en) | A kind of frequency detecting device of frequency converter | |
| CN201594746U (en) | Series-output-based electric energy feedback type electronic load | |
| CN204669229U (en) | Digital power current control circuit | |
| CN202334364U (en) | Solar photovoltaic grid-connected inverter | |
| CN204947929U (en) | A kind of from net photovoltaic control integrated machine for reverse conversion | |
| CN110909514B (en) | Simulation debugging method and simulation debugging platform of matching network | |
| CN103472280A (en) | Voltage detection circuit | |
| CN204347114U (en) | A kind of voltage sampling circuit with capacitance | |
| CN202930961U (en) | Single-phase photovoltaic grid-connected power generation circuit with constant common-mode voltage | |
| CN203278317U (en) | A wind electricity UPS apparatus using capacitor current inner loop control | |
| CN201479099U (en) | Synchronous sawtooth wave generation device based on zero-crossing detection | |
| CN203057083U (en) | High-accuracy negative feedback active audio machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120303 |