CN101951136A - Auxiliary power source bootstrapping circuit of power source converting device - Google Patents
Auxiliary power source bootstrapping circuit of power source converting device Download PDFInfo
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- CN101951136A CN101951136A CN 201010299612 CN201010299612A CN101951136A CN 101951136 A CN101951136 A CN 101951136A CN 201010299612 CN201010299612 CN 201010299612 CN 201010299612 A CN201010299612 A CN 201010299612A CN 101951136 A CN101951136 A CN 101951136A
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- bootstrapping
- power source
- power supply
- storage capacitor
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Abstract
The invention discloses an auxiliary power source bootstrapping circuit of a power source converting device, comprising an input filtering capacitor, a surge protection resistor, a surge protection switch, a bootstrapping charging resistor, a bootstrapping energy storage capacitor and an auxiliary power source. One end of the input filtering capacitor is connected with a high-voltage input positive end while the other end of the input filtering capacitor is connected with a common end of the surge protection switch; a normally-opened point of the surge protection switch is connected with a high-voltage input negative end; the surge protection resistor is connected in parallel between the common point and the normally-opened point of the surge protection switch; one end of the bootstrapping charging resistor is connected with a normally-closed point of the surge protection switch; the other end of the bootstrapping charging resistor is connected with one end of the bootstrapping energy storage capacitor; the other end of the bootstrapping energy storage capacitor is connected with a high-voltage input negative end; and a control power supply end of the auxiliary power source is connected in parallel at the two ends of the bootstrapping energy storage capacitor. The auxiliary power source bootstrapping circuit of the power source converting device has the advantages of reducing the power consumption and the occupation space and improving the reliability.
Description
Technical field
The present invention relates to a kind of accessory power supply boostrap circuit, be adapted to various in, the accessory power supply in large power, electrically supply changeover device bootstrapping starts occasion.
Background technology
In various, in the large power, electrically supply changeover device, all to use the power supply of accessory power supply as control loop, when device started, at first accessory power supply realized that bootstrapping starts, and could start by implement device then.Being illustrated in figure 1 as a kind of typical power supply change-over device accessory power supply bootstrapping starts and anti-surge circuit, be the accessory power supply schematic diagram in the frame of broken lines wherein, at first importing high pressure charges to input filter capacitor (C1), C2 respectively by resistance R 1, R2, reach the starting resistor of auxiliary power controller when C2 voltage after, accessory power supply is started working, a branch road of accessory power supply charges to C2 by D1, to keep C2 voltage, the D2 of leading up in addition provides working power for other control circuit of device; After the accessory power supply work, control switch Kl closure after device control circuit detects C1 voltage abundance, device formally starts.
The shortcoming that existing boostrap circuit exists is: (1) resistance R 2 hangs on the high pressure all the time, has bigger power consumption, generally can be between 3 ~ 8W; (2) resistance R 2 can occupy bigger PCB space; (3) resistance R 2 hangs on the high pressure reliability requirement to R2 all the time also than higher.
Summary of the invention
For big, the deficiency big, poor reliability that takes up room of power consumption of the accessory power supply boostrap circuit that overcomes existing power supply change-over device, the invention provides and a kind ofly reduce power consumption, reduce the accessory power supply boostrap circuit that takes up room and improve the power supply change-over device of reliability.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of accessory power supply boostrap circuit of power supply change-over device, comprise input filter capacitor (C1), anti-surge resistance (R1), anti-surge switch (K1), bootstrapping charging resistor (R2), bootstrapping storage capacitor (C2) and accessory power supply, described input filter capacitor (C1) end links to each other with high pressure input anode, described input filter capacitor (C1) other end links to each other with the common port of described anti-surge switch (K1), link to each other with high pressure input negative terminal the normal battle of described anti-surge switch (K1), described anti-surge resistance (R1) is attempted by between the common point and normal battle of described anti-surge switch (K1), the normally closed point of one end of described bootstrapping charging resistor (R2) and described anti-surge switch (K1) links to each other, the other end of described bootstrapping charging resistor (R2) links to each other with an end of described bootstrapping storage capacitor (C2), the other end of described bootstrapping storage capacitor (C2) links to each other with high pressure input negative terminal, and the control feeder ear of accessory power supply is attempted by the two ends of bootstrapping storage capacitor (C2).
Technical conceive of the present invention is: as shown in Figure 2, be the accessory power supply schematic diagram in the frame of broken lines wherein.When device starts, the switch contact of anti-surge switch (K1) is in normally closed point, the input high pressure charges to input filter capacitor (C1) (being worth bigger) by anti-surge resistance (R1), suppress surge current, import high pressure simultaneously by input filter capacitor (C1), bootstrapping charging resistor (R2) is charged to bootstrapping storage capacitor (C2), after bootstrapping storage capacitor (C2) voltage reaches the starting resistor of auxiliary power controller, accessory power supply is started working, a branch road of accessory power supply is given bootstrapping storage capacitor (C2) charging by diode (D1), to keep bootstrapping storage capacitor (C2) voltage, the D2 of leading up in addition provides working power for other control circuit of device; After the accessory power supply work, anti-surge switch (K1) action of control after device control circuit detects input filter capacitor (C1) voltage abundance, the contact of anti-surge switch (K1) switches to normal battle, device is formal to be started, the bootstrapping charge tunnel cuts off, and bootstrapping charging resistor (R2) breaks away from high-pressure side.
Owing to bootstrapping storage capacitor (C2) is charged by input filter capacitor (C1), bootstrapping charging resistor (R2), therefore be the poor of input voltage and input filter capacitor (C1) terminal voltage by bootstrapping charging resistor (R2) to the charging voltage of the storage capacitor (C2) of booting, requiring under the situation of identical charging charge, the instantaneous power of bootstrapping charging resistor (R2) significantly reduces, and when operate as normal, anti-surge switch (K1) is in normal battle, bootstrapping charging resistor (R2) breaks away from high-pressure side, and no current flows through.
Beneficial effect of the present invention mainly shows: 1, under the situation that does not increase additional devices, instantaneous power consumption during startup on the bootstrapping charging resistor R2 significantly reduces, and R2 goes up no power consumption during operate as normal, has reduced volume and the shared plate area of R2, improve overall efficiency, particularly treated engine efficiency; 2, during operate as normal, R2 breaks away from high-pressure side, and lossless, has prolonged the life-span of R2, thereby improves whole aircraft reliability.
Description of drawings
Fig. 1 is common accessory power supply boostrap circuit schematic diagram.
Fig. 2 is an accessory power supply boostrap circuit schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 2, a kind of accessory power supply boostrap circuit of power supply change-over device, comprise input filter capacitor (C1), anti-surge resistance (R1), anti-surge switch (K1), bootstrapping charging resistor (R2), bootstrapping storage capacitor (C2) and accessory power supply, described input filter capacitor (C1) end links to each other with high pressure input anode, described input filter capacitor (C1) other end links to each other with the common port of described anti-surge switch (K1), link to each other with high pressure input negative terminal the normal battle of described anti-surge switch (K1), described anti-surge resistance (R1) is attempted by between the common point and normal battle of described anti-surge switch (K1), it is characterized in that: the normally closed point of an end of described bootstrapping charging resistor (R2) and described anti-surge switch (K1) links to each other, the other end of described bootstrapping charging resistor (R2) links to each other with an end of described bootstrapping storage capacitor (C2), the other end of described bootstrapping storage capacitor (C2) links to each other with high pressure input negative terminal, and the control feeder ear of accessory power supply is attempted by the two ends of bootstrapping storage capacitor (C2).
In the present embodiment, as shown in Figure 2, be the accessory power supply schematic diagram in the frame of broken lines wherein.When device starts, the switch contact of anti-surge switch (K1) is in normally closed point, the input high pressure charges to input filter capacitor (C1) (being worth bigger) by anti-surge resistance (R1), suppress surge current, import high pressure simultaneously by input filter capacitor (C1), bootstrapping charging resistor (R2) is charged to bootstrapping storage capacitor (C2), after bootstrapping storage capacitor (C2) voltage reaches the starting resistor of auxiliary power controller, accessory power supply is started working, a branch road of accessory power supply is given bootstrapping storage capacitor (C2) charging by diode (D1), to keep bootstrapping storage capacitor (C2) voltage, the D2 of leading up in addition provides working power for other control circuit of device; After accessory power supply (in the frame of broken lines in the accompanying drawing 2 the is accessory power supply) work, anti-surge switch (K1) action of control after device control circuit detects input filter capacitor (C1) voltage abundance, the contact of anti-surge switch (K1) switches to normal battle, device is formal to be started, the bootstrapping charge tunnel cuts off, and bootstrapping charging resistor (R2) breaks away from high-pressure side.
Owing to bootstrapping storage capacitor (C2) is charged by input filter capacitor (C1), bootstrapping charging resistor (R2), therefore be the poor of input voltage and input filter capacitor (C1) terminal voltage by bootstrapping charging resistor (R2) to the charging voltage of the storage capacitor (C2) of booting, requiring under the situation of identical charging charge, the instantaneous power of bootstrapping charging resistor (R2) significantly reduces, and when operate as normal, anti-surge switch (K1) is in normal battle, bootstrapping charging resistor (R2) breaks away from high-pressure side, and no current flows through.
Claims (1)
1. the accessory power supply boostrap circuit of a power supply change-over device, comprise input filter capacitor (C1), anti-surge resistance (R1), anti-surge switch (K1), bootstrapping charging resistor (R2), bootstrapping storage capacitor (C2) and accessory power supply, described input filter capacitor (C1) end links to each other with high pressure input anode, described input filter capacitor (C1) other end links to each other with the common port of described anti-surge switch (K1), link to each other with high pressure input negative terminal the normal battle of described anti-surge switch (K1), described anti-surge resistance (R1) is attempted by between the common point and normal battle of described anti-surge switch (K1), it is characterized in that: the normally closed point of an end of described bootstrapping charging resistor (R2) and described anti-surge switch (K1) links to each other, the other end of described bootstrapping charging resistor (R2) links to each other with an end of described bootstrapping storage capacitor (C2), the other end of described bootstrapping storage capacitor (C2) links to each other with high pressure input negative terminal, and the control feeder ear of accessory power supply is attempted by the two ends of bootstrapping storage capacitor (C2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102996127A CN101951136B (en) | 2010-03-10 | 2010-09-30 | Auxiliary power source bootstrapping circuit of power source converting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122976 | 2010-03-10 | ||
| CN201010122976.8 | 2010-03-10 | ||
| CN2010102996127A CN101951136B (en) | 2010-03-10 | 2010-09-30 | Auxiliary power source bootstrapping circuit of power source converting device |
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| Publication Number | Publication Date |
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| CN101951136A true CN101951136A (en) | 2011-01-19 |
| CN101951136B CN101951136B (en) | 2012-09-05 |
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| CN2010102996127A Active CN101951136B (en) | 2010-03-10 | 2010-09-30 | Auxiliary power source bootstrapping circuit of power source converting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2860862A3 (en) * | 2013-10-11 | 2015-07-29 | Micropatent B.V. | Voltage transformer assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884680Y (en) * | 2006-01-11 | 2007-03-28 | 彩虹集团电子股份有限公司 | Circuits for lowering stating resistance power consumption of switching power source |
| CN201118440Y (en) * | 2007-11-29 | 2008-09-17 | 深圳市同洲电子股份有限公司 | A power on circuit and electronic device |
| JP2009112084A (en) * | 2007-10-29 | 2009-05-21 | Calsonic Kansei Corp | Auxiliary power supply circuit |
| JP2010041834A (en) * | 2008-08-06 | 2010-02-18 | Fuji Electric Systems Co Ltd | Switching power unit |
| CN201893694U (en) * | 2010-03-10 | 2011-07-06 | 杭州中恒电气股份有限公司 | Auxiliary power source bootstrap circuit of power conversion unit |
-
2010
- 2010-09-30 CN CN2010102996127A patent/CN101951136B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884680Y (en) * | 2006-01-11 | 2007-03-28 | 彩虹集团电子股份有限公司 | Circuits for lowering stating resistance power consumption of switching power source |
| JP2009112084A (en) * | 2007-10-29 | 2009-05-21 | Calsonic Kansei Corp | Auxiliary power supply circuit |
| CN201118440Y (en) * | 2007-11-29 | 2008-09-17 | 深圳市同洲电子股份有限公司 | A power on circuit and electronic device |
| JP2010041834A (en) * | 2008-08-06 | 2010-02-18 | Fuji Electric Systems Co Ltd | Switching power unit |
| CN201893694U (en) * | 2010-03-10 | 2011-07-06 | 杭州中恒电气股份有限公司 | Auxiliary power source bootstrap circuit of power conversion unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2860862A3 (en) * | 2013-10-11 | 2015-07-29 | Micropatent B.V. | Voltage transformer assembly |
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| CN101951136B (en) | 2012-09-05 |
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Effective date of registration: 20201221 Address after: 310053 buildings 3 and 4, 358 Dalingshan Road, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Fuyang Zhongheng Electric Co.,Ltd. Address before: No. 69 Hangzhou City, Zhejiang province 310053 Dongxin Hangzhou national hi tech Industrial Development Zone Avenue (hi tech Zone) Patentee before: HANGZHOU ELECTRIC Co.,Ltd. |