CN102611158A - Low-power-consumption power supply method for intermittent load - Google Patents
Low-power-consumption power supply method for intermittent load Download PDFInfo
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- CN102611158A CN102611158A CN2012100662296A CN201210066229A CN102611158A CN 102611158 A CN102611158 A CN 102611158A CN 2012100662296 A CN2012100662296 A CN 2012100662296A CN 201210066229 A CN201210066229 A CN 201210066229A CN 102611158 A CN102611158 A CN 102611158A
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Abstract
The invention relates to a low-power-consumption power supply method for an intermittent load. By taking the advantages of the intermittent load, energy is accumulated by a low-power-consumption power supply way to support the intermittent load to achieve a high-power-consumption operating state in operating time intervals. Particularly, when the intermittent load is in a non-operational state, a power supply only needs to charge a storage unit with low current; and when the intermittent load is in operation, only the storage unit provides high operating current for the load by the aid of a power converter. The power supply method is typically applied to power supply of intermittent loads of low-power-consumption instruments, and especially suitable for supplying power to wireless communication, LCD (liquid crystal display) backlight and the like in the low-power-consumption instruments.
Description
Technical field
The present invention relates to a kind of low-power consumption method of supplying power to of clearance-type load.Being specifically related to a kind of employing charges to be embodied as the method that the clearance-type load is supplied power to the low-power consumption of electricity accumulating unit.
Background technology
Consider demand energy-conservation and safety, the equipment and the system of low-power consumption power supply are also many more.Particularly some industrial occasions all have certain limitation to the operating current of equipment.In the automated system of low-power consumption, because the restriction of electric current can make some functions of equipment realize bringing difficulty.
Simultaneously, the characteristics of the certain all gapped formula work of some functions of the equipments in the real system.Usually only when parameter setting and operation are maked an inspection tour, be only necessary like the wireless communication function of field apparatus and demonstration and display backlight function.Obviously, the wireless communication function of some field apparatuss and demonstration and display backlight function are clearance-type loads of device power supply (DPS).
At present, in the equipment of low-power dissipation system power supply, all be difficult to provide some functions above power consumption constraints.As in present 4 ~ 20mA low-power consumption instrument product, because common wireless communication function of power problems and LCD display backlight function all can be difficult to realize.
Summary of the invention
The objective of the invention is to provide a kind of low-power consumption method of supplying power to of clearance-type load to the defective that prior art exists; Utilize the characteristics of clearance-type load; Design a kind of with lower power consumption supply power mode cumlative energy, to support clearance-type to load on to reach in the workplace section operating state of big power consumption.Specifically be when clearance-type load non operating state, power supply is as long as use less electric current to charge as electricity accumulating unit; When the clearance-type loaded work piece, be that load provides bigger operating current through power supply changeover device only by electricity accumulating unit.This method of supplying power to is particularly suitable for the wireless telecommunications and the LCD backlight electric power of low-power consumption instrument.
For achieving the above object, design of the present invention is: in the load non operating state, made electricity accumulating unit only connect power supply and be in the low current charge state by a diverter switch; At the loaded work piece state, diverter switch makes electricity accumulating unit break off power supply, and power supply changeover device connects electricity accumulating unit and the electric weight in the electricity accumulating unit converted into the electric current that loaded work piece is needed simultaneously.
According to the design of foregoing invention, the present invention adopts following technical scheme:
A kind of low-power consumption method of supplying power to of clearance-type load is characterized in that the electric power system that adopts comprises the power supply of an exportable electric current I 1, a diverter switch, an electricity accumulating unit, a power supply changeover device and a load that needs operating current I2; Described power supply is connected load behind diverter switch and power supply changeover device, diverter switch is connected with electricity accumulating unit; Mode of operation is: described diverter switch makes power supply, electricity accumulating unit, power supply changeover device and load have two kinds of connected modes and operating state under control signal S operation:
(a). described diverter switch is broken off the link circuit of electricity accumulating unit and power supply changeover device; Make electricity accumulating unit only connect into the loop with power supply; Power supply uses the output current I1 less than electric current I 2 values that electricity accumulating unit is charged, and makes electricity accumulating unit save electric weight P;
(b). described diverter switch is broken off the link circuit of electricity accumulating unit and power supply, makes electricity accumulating unit only connect into the loop with power supply changeover device, and power supply changeover device converts the electric weight P of electricity accumulating unit into output current I2 and flows to load;
The low-power consumption method of supplying power to of above-mentioned clearance-type load, described electricity accumulating unit are a chargeable battery or capacitor.Usually, when electricity accumulating unit was rechargeable battery or electric capacity, power supply was to adopt current constant mode to rechargeable battery or electric capacity charging.
The low-power consumption method of supplying power to of above-mentioned clearance-type load; Described power supply changeover device is by a DC/DC charge pump; When electricity accumulating unit and power supply changeover device became the loop to be connected, the DC/DC charge pump was transformed into a magnitude of voltage V who makes load that steady operation electric current I 2 arranged with the electric weight P that saves on the electricity accumulating unit.
The present invention compared with prior art; Have following conspicuous outstanding substantive distinguishing features and remarkable advantage: through the link circuit that discharges and recharges of control electricity accumulating unit, can in the low-power consumption electric power system, make needs big loading under the mode of gap of electric current to work.
Description of drawings
Fig. 1 is the preferred embodiments of the present invention structured flowcharts.
Fig. 2 is that diverter switch 2 is broken off the electricity accumulating unit 3 and the link circuit of power supply changeover device 4 among Fig. 1, and mode and operating state when electricity accumulating unit 3 only is connected with 1 one-tenth loop of power supply.
Fig. 3 is that diverter switch 2 is broken off the electricity accumulating unit 3 and the link circuit of power supply 1 among Fig. 1, and mode and operating state when electricity accumulating unit 3 only is connected with 4 one-tenth loops of power supply changeover device.
Embodiment
The preferred embodiments of the present invention accompanying drawings is following:
Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3,
The low-power consumption method of supplying power to of this clearance-type load, the electric power system of employing comprise 3, one power supply changeover devices 4 of 2, one electricity accumulating units of 1, one diverter switch of power supply and load 5 that needs operating current I2 of an exportable electric current I 1; Described power supply 1 is connected load 5 behind diverter switch 2 and power supply changeover device 4, diverter switch 2 is connected with electricity accumulating unit 3; Mode of operation is that described diverter switch 2 makes power supply 1, electricity accumulating unit 3, power supply changeover device 4 and load 5 have two kinds of connected modes and operating state under control signal S operation:
(a). described diverter switch 2 is broken off the electricity accumulating unit 3 and the link circuit of power supply changeover device 4; Make electricity accumulating unit 3 only connect into the loop with power supply 1; Power supply 1 usefulness is charged to electricity accumulating unit 3 less than the output current I1 of electric current I 2 values, makes electricity accumulating unit 3 save electric weight P;
(b). described diverter switch 2 is broken off the electricity accumulating unit 3 and the link circuit of power supply 1, makes electricity accumulating unit 3 only connect into the loop with power supply changeover device 4, and power supply changeover device 4 converts the electric weight P of electricity accumulating unit 3 into output current I2 and flows to load 5;
Embodiment two:
Present embodiment and embodiment one are basic identical, and special feature is following:
Described electricity accumulating unit 3 is a chargeable battery or capacitor.Usually, when electricity accumulating unit 3 was rechargeable battery or electric capacity, power supply 1 was to adopt current constant mode to rechargeable battery or electric capacity charging.Therefore power supply 1 can be the constant-current supply of an output current I1 when implementing.
Described power supply changeover device 4 is by a DC/DC charge pump, and when electricity accumulating unit 3 and power supply changeover device 4 connected into the loop, the DC/DC charge pump was transformed into a magnitude of voltage V who makes load 5 that steady operation electric current I 2 arranged with the electric weight P that saves on the electricity accumulating unit 3.
When having adopted DC/DC charge pump device as power supply changeover device 4, corresponding DC/DC charge pump device can be transformed into higher stable magnitude of voltage V with the electric weight P that saves on the electricity accumulating unit 3.Like this, if the internal resistance of load is R, as long as R * I2=V just can provide stable operating current I2 for load 2.
In force, general DC/DC charge pump device itself has an ENABLE end can turn-off the input current of DC/DC charge pump, like the REG710 chip of TI company.ENABLE end on the DC/DC charge pump device can be used as the part of diverter switch 2 again.Control signal S on the ENABLE end can turn-off and the loop of connection and electricity accumulating unit 3 through being added in.
In concrete low power consuming devices, the control signal S in this patent is exported by the controller of equipment.Common equipment can also be monitored electricity accumulating unit 3 storing electricity P and whether reached enough values, decides the connected mode and the state of diverter switch 2 again.
Claims (3)
1. the low-power consumption method of supplying power to of a clearance-type load; It is characterized in that the electric power system that adopts comprises the power supply (1) of an exportable electric current I 1; A diverter switch (2), an electricity accumulating unit (3), a power supply changeover device (4) and a load (5) that needs operating current I2; Described power supply (1) is connected load (5) behind diverter switch (2) and power supply changeover device (4), diverter switch (2) is connected with electricity accumulating unit (3); Mode of operation is that described diverter switch (2) makes power supply (1), electricity accumulating unit (3), power supply changeover device (4) and load (5) have two kinds of connected modes and operating state under control signal S operation:
(a). described diverter switch (2) is broken off the electricity accumulating unit (3) and the link circuit of power supply changeover device (4); Make electricity accumulating unit (3) only connect into the loop with power supply (1); Power supply (1) uses the output current I1 less than electric current I 2 values that electricity accumulating unit (3) is charged, and makes electricity accumulating unit (3) save electric weight P;
(b). described diverter switch (2) is broken off the electricity accumulating unit (3) and the link circuit of power supply (1); Make electricity accumulating unit (3) only connect into the loop with power supply changeover device (4), power supply changeover device (4) converts the electric weight P of electricity accumulating unit (3) into output current I2 and flows to load (5).
2. the low-power consumption method of supplying power to of clearance-type load according to claim 1 is characterized in that described electricity accumulating unit (3) is a chargeable battery or capacitor.
3. the low-power consumption method of supplying power to of clearance-type load according to claim 1; It is characterized in that described power supply changeover device (4) is by a DC/DC charge pump; When connecting into the loop, the DC/DC charge pump is transformed into a magnitude of voltage V who makes load (5) that steady operation electric current I 2 arranged with the electric weight P that saves on the electricity accumulating unit (3) at electricity accumulating unit (3) and power supply changeover device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100662296A CN102611158A (en) | 2012-03-14 | 2012-03-14 | Low-power-consumption power supply method for intermittent load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100662296A CN102611158A (en) | 2012-03-14 | 2012-03-14 | Low-power-consumption power supply method for intermittent load |
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| CN102611158A true CN102611158A (en) | 2012-07-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112040609A (en) * | 2019-06-03 | 2020-12-04 | 雅达电子国际有限公司 | Gardening facilities with centralized power supply for supplying power to LED lamps via power switch |
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| CN101741241A (en) * | 2009-12-04 | 2010-06-16 | 陕西科技大学 | Power supply of drive motor in solar automatic tracking system |
| CN201789415U (en) * | 2009-11-17 | 2011-04-06 | 中兴通讯股份有限公司 | Power supply device for pulse-type load |
| CN102103400A (en) * | 2009-12-17 | 2011-06-22 | 深圳富泰宏精密工业有限公司 | Power supply device and using method thereof |
| US20110278934A1 (en) * | 2010-05-14 | 2011-11-17 | American Power Conversion Corporation | Digital control method for operating the ups systems in parallel |
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2012
- 2012-03-14 CN CN2012100662296A patent/CN102611158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789415U (en) * | 2009-11-17 | 2011-04-06 | 中兴通讯股份有限公司 | Power supply device for pulse-type load |
| CN101741241A (en) * | 2009-12-04 | 2010-06-16 | 陕西科技大学 | Power supply of drive motor in solar automatic tracking system |
| CN102103400A (en) * | 2009-12-17 | 2011-06-22 | 深圳富泰宏精密工业有限公司 | Power supply device and using method thereof |
| US20110278934A1 (en) * | 2010-05-14 | 2011-11-17 | American Power Conversion Corporation | Digital control method for operating the ups systems in parallel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112040609A (en) * | 2019-06-03 | 2020-12-04 | 雅达电子国际有限公司 | Gardening facilities with centralized power supply for supplying power to LED lamps via power switch |
| CN112040609B (en) * | 2019-06-03 | 2023-02-03 | 雅达电子国际有限公司 | Gardening facilities with centralized power supply for supplying power to LED lamps via power switch |
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Application publication date: 20120725 |