CN202424523U - Low-level controlled high-voltage output circuit - Google Patents
Low-level controlled high-voltage output circuit Download PDFInfo
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- CN202424523U CN202424523U CN2011205329271U CN201120532927U CN202424523U CN 202424523 U CN202424523 U CN 202424523U CN 2011205329271 U CN2011205329271 U CN 2011205329271U CN 201120532927 U CN201120532927 U CN 201120532927U CN 202424523 U CN202424523 U CN 202424523U
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- optical fiber
- relay
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Abstract
The utility model relates to a low-level controlled high-voltage output circuit, which comprises a low-level switching circuit and a high-level power control circuit for controlling high-voltage dual output. The low-level switching circuit is provided with an optical fiber transmitting head and a low-level control switch for controlling on and off of the optical fiber transmitting head, the high-level power control circuit is provided with an optical fiber receiving head and a high-voltage output regulating circuit, the high-voltage output regulating circuit is connected with the optical fiber receiving head through a circuit, and the optical fiber transmitting head is connected with the optical fiber receiving head through an optical fiber. The low-level controlled high-voltage output circuit is simple, effective and convenient, the mode of optical fiber isolation is made full use of, convenience in control and safety in operation are realized by means of replacing a traditional high-level mechanical switch for control with an optical fiber and relay structure, and a power supply is ensured to conveniently and effectively control output of the circuit without halting, so that high-level power output is effectively controlled.
Description
Technical field
The utility model belongs to circuit current potential switch technology field, particularly be the output circuit that a kind of high potential converts electronegative potential control to.
Background technology
At present; The common requirement of some high voltage source can realize the conversion of single, double road output, and traditional power supply all adopts high-order control mode to realize, such power supply control mode is very loaded down with trivial details and fail safe is very poor; After must shutting down high-order power supply at every turn, just practicable conversion.
And the low level conversion regime can be accomplished this task easily; Neither need close high-order power supply and also can play safety effect; But consider high potential output and regulating and controlling problem of withstand voltage partly, therefore, also do not realize that high potential converts the output circuit of electronegative potential control at present.
The utility model content
Can only adopt high-order control method to general power supply output; The utility model purpose is to be to provide a kind of electronegative potential that circuit output implementation is controlled easily and effectively effectively to control high-order power supply output, and employing optical fiber isolated controlling mode and vacuum relay come the problem of withstand voltage of output of effective solution high potential and regulating and controlling part.
To achieve these goals, the utility model is to realize through following technical scheme:
A kind of low level is controlled high-order voltage follower circuit; It comprises the high-order power control circuit of low-side switch change-over circuit and the output of control high pressure two-way; Said low-side switch change-over circuit is provided with the low level control switch of optical fiber emitting head and control light pricker emitting head break-make electricity; Said high-order power control circuit is provided with optical fiber and receives head and receive the high pressure output regulating circuitry that head is connected through circuit with optical fiber; Said optical fiber emitting head receives head through optical fiber and optical fiber and is connected, through adopting the mode of optical fiber isolated controlling, to reach the high-order power supply output of effective control.
Further, said high pressure output regulating circuitry comprises PNP triode, first relay and is used to connect second relay of high pressure two-way output; The base stage of said PNP triode connects the pin that optical fiber receives head; The emitter of said PNP triode connects an end of second relay; The collector electrode of said PNP triode connects an end of first relay, and the other end of said first relay connects the other end of second relay.
Further, also be connected with first resistance between the base stage of said optical fiber reception head and PNP triode, on said first resistance, be parallel with electric capacity, be convenient to control.
Further, also be connected with second resistance between the collector electrode of said first relay and PNP triode, also be parallel with the 3rd resistance on said first relay and first resistance.
As preferred version, what said first relay and second relay all adopted is the high pressure vacuum relay, easy to use.
Further, said low level control switch one end connects an end of optical fiber emitting head, and its other end is connected with high-order DC power supply, and the other end of said optical fiber emitting head connects ground wire; Also be provided with the 4th resistance between said and optical fiber emitting head and the low level control switch.
Further, the low level change-over circuit of said high-order power control circuit also is connected with the low level DC power supply, and high-order power supply output control circuit will be provided with high-order low-voltage dc power supply.
The utility model is controlled high-order output circuit through simply, effectively making things convenient for low level; Made full use of the mode that optical fiber is isolated; Through replacing traditional high-order mechanical switch control with optical fiber and relay construction, realized that control is convenient, the function of handling safety, guaranteed power supply completion under not shutting down; Control is easily and effectively carried out in output to circuit, to reach the problem of the high-order power supply output of effective control.
Description of drawings
Specify the utility model below in conjunction with accompanying drawing and embodiment;
Fig. 1 is the circuit diagram of the utility model embodiment.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with embodiment, further set forth the utility model.
With reference to circuit diagram shown in Figure 1; Present embodiment technical problem to be solved is; Can only adopt high-order control method to general power supply output; This traditional control mode can not this traditional control mode can not be carried out control easily and effectively to circuit output, on its basis, improves the circuit control mode to reach the problem of the high-order power supply output of effective control.A kind of low level of present embodiment is controlled high-order voltage follower circuit; It comprises the high-order power control circuit of low-side switch change-over circuit and the output of control high pressure two-way; This low-side switch change-over circuit is provided with the low level control switch S of optical fiber emitting head TE and control light pricker emitting head TE break-make electricity; Said high-order power control circuit is provided with optical fiber and receives a RE and receive the high pressure output regulating circuitry that a RE is connected through circuit with optical fiber; Said optical fiber emitting head TE receives a RE through optical fiber and optical fiber and is connected, through adopting the mode of optical fiber isolated controlling, to reach the high-order power supply output of effective control.
In the present embodiment, high-order power control circuit also is connected with the low level DC power supply of 15 volts of direct currents.The high pressure output regulating circuitry comprises PNP triode Q1, first relay J 1 and is used to connect second relay J 2 of high pressure two-way output; The base stage of this PNP triode Q1 connects the pin that optical fiber receives a RE; The emitter of PNP triode Q1 connects an end of second relay J 2; The collector electrode of PNP triode Q1 connects an end of first relay J 1, and the other end of this first relay J 1 connects the other end of second relay J 2.Between the base stage of an optical fiber reception RE and PNP triode Q1, also be connected with first resistance R 1, on said first resistance R 1, be parallel with capacitor C 1, be convenient to control.
Also be connected with second resistance R 2 between the collector electrode of first relay J 1 and PNP triode Q1, and also be parallel with the 3rd resistance R 3 on this first relay J 1 and second resistance R 2.
As preferred version, what present embodiment first relay J 1 and second relay J 2 all adopted is the high pressure vacuum relay, effectively solves high potential output and regulating and controlling problem of withstand voltage partly; Low level control switch S one end connects the end of optical fiber emitting head RE, and its other end is connected with the high-order DC power supply of 24 volts of direct currents, and the other end of the said optical fiber emitting head of this high position TE connects ground wire; Also be provided with the 4th resistance R 4 between said and optical fiber emitting head TE and the low level control switch S.
The present embodiment control circuit is divided into low-side switch conversion S and high-order power control circuit, and this just requires control to isolate, and ingenious optical fiber radiation head TE, an optical fiber reception RE and optical fiber three parts utilized of the design have successfully realized 20kV high pressure isolating problem; Present embodiment mesohigh different fiber length also different (the dielectric surface voltage breakdown can calculate according to 300V/mm).
When low level control switch S does not have closure; Optical fiber emitting head TE does not work; Optical fiber receives a RE and can't accept light, and promptly PNP triode Q1 can conducting, and first relay J 1 can not get then; It is electric that second relay J 2 also can not got by first relay J, 1 Chang Kaiduan control, thereby the high voltage source output has only one road G1 output.In case when needing the two-way high pressure to export simultaneously, only need connect low level control switch S this moment, optical fiber emitting head TE emitting optical fiber receives a RE and receives light work; PNP triode Q1 conducting first relay J 1 coil gets; After the work of first relay J 1, auxiliary source+15V connects the coil of second relay J 2 through the Chang Kaiduan of first relay J 1, and these second relay J, 2 main effects are in order to realize the isolation between high pressure output and the high-order assist control; Thereby make 2 work of second relay J; Thereby make its Chang Kaiduan and common port be communicated with, i.e. high pressure output G1, G2 connect, thereby realize two-way output.
The utility model is controlled high-order output circuit through simply, effectively making things convenient for low level; Made full use of the mode that optical fiber is isolated; Through replacing traditional high-order mechanical switch control with optical fiber and relay construction, realized that control is convenient, the function of handling safety, guaranteed power supply completion under not shutting down; Control is easily and effectively carried out in output to circuit, to reach the problem of the high-order power supply output of effective control.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (2)
1. a low level is controlled high-order voltage follower circuit; It comprises the high-order power control circuit of low-side switch change-over circuit and the output of control high pressure two-way; Said low-side switch change-over circuit is provided with the low level control switch of optical fiber emitting head and control light pricker emitting head break-make electricity; Said high-order power control circuit is provided with optical fiber and receives head and receive the high pressure output regulating circuitry that head is connected through circuit with optical fiber, and said optical fiber emitting head receives head through optical fiber and optical fiber and is connected.
2. a kind of low level according to claim 1 is controlled high-order voltage follower circuit, it is characterized in that, said high pressure output regulating circuitry comprises PNP triode, first relay and is used to connect second relay of high pressure two-way output; The base stage of said PNP triode connects the pin that optical fiber receives head; The emitter of said PNP triode connects an end of second relay; The collector electrode of said PNP triode connects an end of first relay, and the other end of said first relay connects the other end of second relay.
3. a kind of low level according to claim 2 is controlled high-order voltage follower circuit, it is characterized in that, also is connected with first resistance between the base stage of said optical fiber reception head and PNP triode, on said first resistance, is parallel with electric capacity.
4. according to claim 3 a high-order voltage follower circuit of control, it is characterized in that, also be connected with second resistance between the collector electrode of said first relay and PNP triode, also be parallel with the 3rd resistance on said first relay and first resistance.
5. control high-order voltage follower circuit according to any described a kind of low level of claim 1 to 4, it is characterized in that what said first relay and second relay all adopted is the high pressure vacuum relay.
6. control high-order voltage follower circuit according to any described a kind of low level of claim 1 to 4; It is characterized in that; Said low level control switch one end connects an end of optical fiber emitting head, and its other end is connected with high-order DC power supply, and the other end of said optical fiber emitting head connects ground wire; Also be provided with the 4th resistance between said and optical fiber emitting head and the low level control switch.
7. control high-order voltage follower circuit according to any described a kind of low level of claim 1 to 4; It is characterized in that; The low level change-over circuit of said high-order power control circuit also is connected with the low level DC power supply, and high-order power supply output control circuit will be provided with high-order low-voltage dc power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205329271U CN202424523U (en) | 2011-12-19 | 2011-12-19 | Low-level controlled high-voltage output circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205329271U CN202424523U (en) | 2011-12-19 | 2011-12-19 | Low-level controlled high-voltage output circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424523U true CN202424523U (en) | 2012-09-05 |
Family
ID=46749247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205329271U Expired - Fee Related CN202424523U (en) | 2011-12-19 | 2011-12-19 | Low-level controlled high-voltage output circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424523U (en) |
-
2011
- 2011-12-19 CN CN2011205329271U patent/CN202424523U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |