CN201887662U - High-stability controller for ultra-high voltage DC high voltage generator - Google Patents
High-stability controller for ultra-high voltage DC high voltage generator Download PDFInfo
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- CN201887662U CN201887662U CN2010205061899U CN201020506189U CN201887662U CN 201887662 U CN201887662 U CN 201887662U CN 2010205061899 U CN2010205061899 U CN 2010205061899U CN 201020506189 U CN201020506189 U CN 201020506189U CN 201887662 U CN201887662 U CN 201887662U
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Abstract
The utility model relates to a high-stability controller for an ultra-high voltage DC high voltage generator, comprising a rectifier filter circuit, a voltage stabilizing circuit, a voltage stabilizing control circuit, a bridge inversion output circuit and a voltage-multiplying rectifying high voltage output circuit, wherein the voltage stabilizing circuit comprises a voltage stabilizing unit formed by series connection of voltage stabilizing units of at least two stages. The controller can improve the stability of voltage which is output by an input power supply via the multistage voltage stabilizing units by more than ten times through increasing the stage quantity of the voltage stabilizing units of the voltage stabilizing circuit, thereby greatly improving the stability of an ultra-high voltage DC generator system.
Description
Technical field
The utility model relates to a kind of control device, and particularly a kind of high stability extra-high voltage direct-current high pressure generator control device belongs to the high-voltage electrical apparatus technical field.
Background technology
The stability of extra-high voltage direct-current generator output voltage depends on the stability of main working power in the control cabinet.Thereby after will carrying out voltage stabilizing through voltage stabilizing circuit behind the current rectifying and wave filtering circuit, input to the stability that the bridge type inverse output circuit guarantees output voltage in main working power usually, existing voltage stabilizing circuit is realized by the one-level voltage regulation unit, the basic functional principle of voltage regulation unit as shown in Figure 3, the PWM Switching Power Supply that this unit mainly is made up of transistor BG1, obtain the feedback signal of taking a sample by power output end, controlling circuit of voltage regulation compares sampled signal and reference signal and produces PWM and transfer wide drive signal to deliver to the driving input of BG1, and output voltage is stablized.Since controlling circuit of voltage regulation carries out relatively be a kind of error ratio, so the stability of output voltage is that certain limit is arranged.
The utility model content
The utility model purpose is that a kind of high stability extra-high voltage direct-current high pressure generator control device is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: high stability extra-high voltage direct-current high pressure generator control device, comprise that the electric main that is used for input is converted to galvanic current rectifying and wave filtering circuit, the voltage stabilizing circuit that is electrically connected with the output of described current rectifying and wave filtering circuit, be connected with the input of described voltage stabilizing circuit and be used to control the controlling circuit of voltage regulation of voltage stabilizing circuit output, be electrically connected with described circuit output end of pressure-stabilizing and be used for the direct current of voltage stabilizing circuit output is converted to the bridge type inverse output circuit of alternating current, being electrically connected with the output of described inverter output circuit is used for the voltage multiplying rectifier high-voltage output circuit that the alternating current with the output of bridge type inverse output circuit converts direct current to and amplifies, and described voltage stabilizing circuit is made up of the voltage regulation unit that two-stage at least is connected in series mutually.
Further, described every grade of voltage regulation unit comprises the switching power circuit that a transistor is formed, the DC power supply of current rectifying and wave filtering circuit output is by the transistor collector input of first order voltage regulation unit, controlling circuit of voltage regulation with the output sampling feedback signal of the output of first order voltage stabilizing circuit sampling feedback signal and back level voltage regulation unit and reference voltage signal respectively relatively the back produce drive signal and input to transistor base, the power supply after the voltage stabilizing is exported by the transistorized emitter of afterbody voltage regulation unit.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: the utility model is by the progression of the voltage regulation unit of increase voltage stabilizing circuit, thereby make the voltage stability of power supply through exporting behind the multistage voltage regulation unit of input can improve more than ten times, thereby improved the stability of extra-high voltage direct-current generator system greatly.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Accompanying drawing 1 is the electric theory diagram of the utility model high stability extra-high voltage direct-current high pressure generator control device;
Wherein: 1, current rectifying and wave filtering circuit; 2, voltage stabilizing circuit; 21, first order voltage regulation unit; 22, second level voltage regulation unit; 3, controlling circuit of voltage regulation; 4, bridge type inverse output circuit; 5, voltage multiplying rectifier high-voltage output circuit.
Embodiment
Below in conjunction with accompanying drawing, describe particular content of the present utility model in detail for example:
High stability extra-high voltage direct-current high pressure generator control device as shown in Figure 1, comprise current rectifying and wave filtering circuit 1, voltage stabilizing circuit 2, controlling circuit of voltage regulation 3, bridge type inverse output circuit 4 and voltage multiplying rectifier high-voltage output circuit 5, current rectifying and wave filtering circuit 1 is transformed to direct current with the electric main of importing and inputs to voltage stabilizing circuit 2, voltage stabilizing circuit 2 carries out voltage stabilizing according to the control of controlling circuit of voltage regulation 3 to the direct current of importing, thereby the galvanic current pressure is inputed in the bridge type inverse output circuit 4, described bridge type inverse output circuit 4 carries out the direct current of input to input to voltage multiplying rectifier high-voltage output circuit 5 behind the exchange conversion, alternating current is thereby that direct current and amplification obtain stable high voltage direct current through 5 rectifications of voltage multiplying rectifier high-voltage output circuit, wherein, voltage stabilizing circuit 2 is connected in series realization by first order voltage regulation unit 21 mutually with second level voltage regulation unit 22, as shown in Figure 2, first order voltage regulation unit 21 comprises transistor BG1, the inductance L 1 that is connected with transistor BG1 emitter, the filter capacitor C2 that links to each other with ground with inductance L 1, second voltage regulation unit 22 is identical with the circuit structure of first voltage regulation unit 21, it comprises transistor BG2, the inductance L 2 that is connected with transistor BG2 emitter, the other end of inductance L 2 is a power output end, and is connected filter capacitor C3 between this end and ground.In the time of work, need of the collector electrode input of the power supply of voltage stabilizing from first order voltage regulation unit transistor BG1, compare through the sampling feedback signal of controlling circuit of voltage regulation 3 voltage control reference signal and each voltage regulation unit output voltage, and the error signal after will comparing converts transistor BG1 and BG2 that pulse-modulated signal removes to control voltage regulation unit to, finally, power supply after voltage stabilizing is by inductance L 2 outputs of second level voltage regulation unit 22, therefore, in the present embodiment, the controlling circuit of voltage regulation 3 that is used to control first voltage regulation unit 21 and second voltage regulation unit 22 also comprises two stage comparator, first comparator compares the sampling feedback signal and the voltage control reference signal of 21 outputs of first order voltage regulation unit, and the error signal after will comparing converts the base stage that a pulse-width signal inputs to transistor BG1 again to, thereby the output of control first order voltage regulation unit 21, second comparator compares the sampling feedback signal and the voltage control reference signal of second level voltage regulation unit 22 output voltages, and the error signal after will comparing converts pulse-modulated signal to and inputs to transistor BG2, through the voltage stabilizing of two-stage voltage regulation unit, the stability of power supply of being imported by current rectifying and wave filtering circuit 1 will exceed more than ten times than monostable pressure unit.
Present embodiment increases one-level with the voltage regulation unit of voltage stabilizing circuit 2, the two-stage voltage regulation unit is promptly arranged, the fluctuation of the voltage of input is able to filtering substantially through first order voltage regulation unit, will be greatly improved through the adjusted output voltage stabilization degree of second level voltage regulation unit again.
Below only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.
Claims (2)
1. high stability extra-high voltage direct-current high pressure generator control device, it is characterized in that: comprise that the electric main that is used for input is converted to galvanic current rectifying and wave filtering circuit, the voltage stabilizing circuit that is electrically connected with the output of described current rectifying and wave filtering circuit, be connected with the input of described voltage stabilizing circuit and be used to control the controlling circuit of voltage regulation of voltage stabilizing circuit output, be electrically connected with described circuit output end of pressure-stabilizing and be used for the direct current of voltage stabilizing circuit output is converted to the bridge type inverse output circuit of alternating current, being electrically connected with the output of described inverter output circuit is used for the voltage multiplying rectifier high-voltage output circuit that the alternating current with the output of bridge type inverse output circuit converts direct current to and amplifies, and described voltage stabilizing circuit is made up of the voltage regulation unit that two-stage at least is connected in series mutually.
2. high stability extra-high voltage direct-current high pressure generator control device according to claim 1, it is characterized in that: described every grade of voltage regulation unit comprises the switching power circuit that a transistor is formed, the DC power supply of current rectifying and wave filtering circuit output is by the transistor collector input of first order voltage regulation unit, controlling circuit of voltage regulation with the output sampling feedback signal of the output of first order voltage stabilizing circuit sampling feedback signal and back level voltage regulation unit and reference voltage signal respectively relatively the back produce drive signal and input to transistor base, the power supply after the voltage stabilizing is exported by the transistorized emitter of afterbody voltage regulation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205061899U CN201887662U (en) | 2010-08-26 | 2010-08-26 | High-stability controller for ultra-high voltage DC high voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205061899U CN201887662U (en) | 2010-08-26 | 2010-08-26 | High-stability controller for ultra-high voltage DC high voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887662U true CN201887662U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205061899U Expired - Lifetime CN201887662U (en) | 2010-08-26 | 2010-08-26 | High-stability controller for ultra-high voltage DC high voltage generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377355A (en) * | 2010-08-26 | 2012-03-14 | 苏州华电电气股份有限公司 | High-stability ultra-high-voltage direct current high-voltage generator control device |
-
2010
- 2010-08-26 CN CN2010205061899U patent/CN201887662U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377355A (en) * | 2010-08-26 | 2012-03-14 | 苏州华电电气股份有限公司 | High-stability ultra-high-voltage direct current high-voltage generator control device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |