CN102437755B - Inverse power supply control system - Google Patents
Inverse power supply control system Download PDFInfo
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- CN102437755B CN102437755B CN201110448340.7A CN201110448340A CN102437755B CN 102437755 B CN102437755 B CN 102437755B CN 201110448340 A CN201110448340 A CN 201110448340A CN 102437755 B CN102437755 B CN 102437755B
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- 238000001914 filtration Methods 0.000 claims abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
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- 238000005381 potential energy Methods 0.000 description 1
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Abstract
The invention relates to a power supply control device, in particular to an inverse power supply control system capable of reducing volume of a power supply and regulating output current frequency and pulse width. The inverse power supply control system provided by the invention comprises a master control circuit (A) and an auxiliary circuit (B), wherein the master control circuit (A) comprises a rectification filtering module (1), an inverter circuit and an output rectifier module (2) which are sequentially connected between an input terminal (a) and an output terminal (b); the inverter circuit comprises a singlechip control module (3) which can receive a given signal (15) as well as a forward stage inverter unit and a backward stage inverter unit which are respectively connected on the singlechip control module (3); the forward stage inverter unit is connected with the output rectifier module (2) by virtue of a high-frequency energy storage type transformer (4); the backward stage inverter unit is directly connected with the output rectifier module (2); and the auxiliary circuit (B) is connected between the output terminal (b) and the singlechip control module (3). The inverse power supply control system provided by the invention has the beneficial effects of wide application range and good stability, and is convenient to use.
Description
Technical field
The present invention relates to a kind of power control, be specially a kind of inverter control system.
Background technology
Utilize particular electrical circuit that direct current is transformed into alternating current, this reverse process corresponding to rectification, is defined as inversion.For example: the electric locomotive of application inverter circuit, when descending, DC motor is moved as generator brake, the potential energy of locomotive is transformed into electric energy, and counter delivering in AC network gone.And for example operating DC motor, make it brake rapidly, also can allow motor make generator operation, and the kinetic energy of motor is changed into electric energy, and counter delivering in electrical network gone.Become the circuit of alternating current to call inverter circuit DC inverter.When current transformer is operated in inverter mode, if the AC of current transformer is received in AC power, the anti-electrical network of delivering to of the alternating current that is same frequency DC inverter goes, and is active inversion.If the AC of current transformer does not connect with electrical network, and directly receives load, is the alternating current supply load of a certain frequency or adjustable frequency DC inverter, be passive inverter.Ac variable frequency speed regulation utilizes this principle work.Active inversion is except for DC reversible speed control system, also for exchanging the aspects such as the tandem control of rich line Rotor Asynchronous Motor and high voltage direct current transmission.Arc welding transformer is exactly very common a kind of inverter, its can output LOW voltage large electric current, this specific character just in time goes for some specific occasions, by galvanomagnetic effect, produce the adjustable vibration of rule, but arc welding transformer adds its control system and makes power volume large, and control system can only be adjusted the size of output current, can not carry out adaptive adjustment to frequency and pulsewidth, be therefore difficult to be applied to other side.
Summary of the invention
The object of the present invention is to provide a kind ofly can reduce power volume, can regulation output power frequency and the inverter control system of pulsewidth.
A kind of inverter control system of the present invention, comprises governor circuit A and auxiliary circuit B, it is characterized in that, described governor circuit A comprises rectification filtering module 1, inverter circuit, the output rectification module 2 being connected in turn between input a and output b; Described inverter circuit comprises the single chip control module 3 that can accept given signal 15, and is connected in single chip control module 3 for the preceding-stage inversion unit of high-power output with for controlling the rear class inversion unit of frequency and the pulsewidth of output waveform; Preceding-stage inversion unit is by high frequency storage transformer 4 access output rectification modules 2; Rear class inversion unit directly accesses output rectification module 2; For feeding back the input port of the auxiliary circuit B of output current, connect output b, delivery outlet connects single chip control module 3.
Further, described preceding-stage inversion unit is comprised of the D/A converter 5 connecting successively, pulse-width modulation circuit 6, front stage drive circuit 7 and prime power switch pipe 8.
Further, described rear class inversion unit is comprised of the buffer 9 connecting successively, post-stage drive circuit 10 and rear class power switch pipe 11.
Further, described auxiliary circuit B is comprised of the Hall element 12 connecting successively, amplifying circuit 13 and A/D converter 14.
Further, described given signal 15 is controlled and is adjusted by controlled adjuster 16.
A kind of inverter control system of the present invention, by the adjusting of the power adjustments of the electric current of inverter circuit output and frequency, pulsewidth is separately controlled, realized inverter output current under the constant prerequisite of power, frequency and the pulsewidth of adjusting electric current that can be convenient, flexible, and coordinate the effect of high frequency storage transformer simultaneously, under the prerequisite of output Same Efficieney, reduced greatly the volume of inverter; Its beneficial effect is, reasonable in design, structure is ingenious, easy to use, applied widely, and power and frequency, pulsewidth can independent regulation, good stability, and output current wave is stable.
Accompanying drawing explanation
Accompanying drawing is the theory diagram of control system described in example 2 of the present invention
In figure: rectification filtering module 1, output rectification module 2, single chip control module 3, high frequency storage transformer 4, D/A converter 5, pulse-width modulation circuit 6, front stage drive circuit 7, prime power switch pipe 8, buffer 9, post-stage drive circuit 10, rear class power switch pipe 11, Hall element 12, amplifying circuit 13, A/D converter 14, given signal 15, controlled adjuster 16, governor circuit A, auxiliary circuit B, input a, output b
Embodiment
Example 1
A kind of inverter control system of the present invention, comprises the governor circuit A and the auxiliary circuit B that the input filter module 1, inverter circuit, the output rectification module 2 that are connected in turn between input a and output b, consist of; Inverter circuit is by single chip control module 3 and difference connected preceding-stage inversion unit, rear class inversion unit; Single chip control module 3 can be accepted given signal 15; Preceding-stage inversion unit is used for high-power output, and by high frequency storage transformer 4 access output rectification modules 2; Rear class inversion unit is for controlling frequency and the pulsewidth of output waveform, and directly rectification module 2 is exported in access; Auxiliary circuit B is connected respectively output b and single chip control module 3 by input port and delivery outlet.
When using the present invention to control inverter, industrial-frequency alternating current is from input a input control system, effect through rectification filtering module 1 is converted to direct current, then through single chip control module 3, is outputed to respectively preceding-stage inversion unit and does powerful output and output to the adjusting that rear class inversion unit is done frequency and pulsewidth; ; The direct current for regulating frequency, pulsewidth of exporting and powerful alternating current are integrated and are processed through output rectification module 2, finally with the alternating current form of high-power, adjustable frequency and pulsewidth, from output b, export.Auxiliary circuit B gathers output current, feeds back to single chip control module 3 and compare with given signal 15 after processing, output current value and given value of current value is reached unanimity, thereby realize constant current output.
Example 2
A kind of inverter control system of the present invention, as shown in drawings, wherein preceding-stage inversion unit is comprised of the D/A converter 5 connecting successively, pulse-width modulation circuit 6, front stage drive circuit 7 and prime power switch pipe 8; Rear class inversion unit is comprised of the buffer 9 connecting successively, post-stage drive circuit 10 and rear class power switch pipe 11; Auxiliary circuit B is comprised of the Hall element 12 connecting successively, amplifying circuit 13 and A/D converter 14; Given signal 15 is adjusted by controlled adjuster 16, and all the other structures are with described in example 1.
During use, in preceding-stage inversion unit, first by D/A converter 5, direct current is converted to alternating current, make its whole being operated under high frequency environment, then by 6 pairs of pulsewidths of pulse-width modulation circuit, control, finally by front stage drive circuit 7, control prime power switch pipes 8 output high-frequency alternating currents again, finally by high frequency storage transformer 4 at double amplifying power carry out powerful output; In rear class inversion unit, the direct current of input first guarantees the safety of subsequent conditioning circuit through buffer 9, then through post-stage drive circuit 10, drives rear class power switch pipe 11 to adjust frequency and the pulsewidth of output current; In auxiliary circuit B, current signal is gathered by Hall element 12, then through amplifying circuit 13, amplify, and by A/D converter, be converted to direct current and be input in single chip control module and contrast with the given signal 15 of being controlled by controlled adjuster 16, all the other steps are with described in example 1.
Claims (5)
1. an inverter control system, comprise governor circuit (A) and auxiliary circuit (B), it is characterized in that, described governor circuit (A) comprises rectification filtering module (1), inverter circuit, the output rectification module (2) being connected in turn between input (a) and output (b); Described inverter circuit comprises the single chip control module (3) that can accept given signal (15), and it is upper for the preceding-stage inversion unit of high-power output with for controlling the rear class inversion unit of frequency and the pulsewidth of output waveform to be connected to single chip control module (3); Preceding-stage inversion unit is by high frequency storage transformer (4) access output rectification module (2); Rear class inversion unit directly accesses output rectification module (2); For feeding back the input port of the auxiliary circuit (B) of output current, connect output (b), delivery outlet connects single chip control module (3).
2. a kind of inverter control system as claimed in claim 1, it is characterized in that, described preceding-stage inversion unit is comprised of the D/A converter connecting successively (5), pulse-width modulation circuit (6), front stage drive circuit (7) and prime power switch pipe (8).
3. a kind of inverter control system as claimed in claim 1, is characterized in that, described rear class inversion unit is comprised of the buffer connecting successively (9), post-stage drive circuit (10) and rear class power switch pipe (11).
4. a kind of inverter control system as claimed in claim 1, is characterized in that, described auxiliary circuit (B) is comprised of the Hall element connecting successively (12), amplifying circuit (13) and A/D converter (14).
5. a kind of inverter control system as claimed in claim 1, is characterized in that, described given signal (15) is controlled and adjusted by controlled adjuster (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110448340.7A CN102437755B (en) | 2011-12-28 | 2011-12-28 | Inverse power supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110448340.7A CN102437755B (en) | 2011-12-28 | 2011-12-28 | Inverse power supply control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102437755A CN102437755A (en) | 2012-05-02 |
| CN102437755B true CN102437755B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110448340.7A Expired - Fee Related CN102437755B (en) | 2011-12-28 | 2011-12-28 | Inverse power supply control system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2880347Y (en) * | 2006-02-22 | 2007-03-21 | 上海沪工电焊机制造有限公司 | Double-tube inversed impact switch circuit in reversed changing welder |
| US7227763B1 (en) * | 2006-07-24 | 2007-06-05 | Averd Co., Ltd. | Power supply apparatus using half-bridge circuit |
| CN101013857A (en) * | 2006-12-21 | 2007-08-08 | 中国科学院电工研究所 | High-frequency high-voltage power supply for detecting leakage of plastic liquid container |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101151793A (en) * | 2005-03-29 | 2008-03-26 | 株式会社安川电机 | Current control apparatus and current offset correction method thereof |
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2011
- 2011-12-28 CN CN201110448340.7A patent/CN102437755B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2880347Y (en) * | 2006-02-22 | 2007-03-21 | 上海沪工电焊机制造有限公司 | Double-tube inversed impact switch circuit in reversed changing welder |
| US7227763B1 (en) * | 2006-07-24 | 2007-06-05 | Averd Co., Ltd. | Power supply apparatus using half-bridge circuit |
| CN101013857A (en) * | 2006-12-21 | 2007-08-08 | 中国科学院电工研究所 | High-frequency high-voltage power supply for detecting leakage of plastic liquid container |
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| Publication number | Publication date |
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| CN102437755A (en) | 2012-05-02 |
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