CN203932967U - A kind of coil controller - Google Patents
A kind of coil controller Download PDFInfo
- Publication number
- CN203932967U CN203932967U CN201320853515.7U CN201320853515U CN203932967U CN 203932967 U CN203932967 U CN 203932967U CN 201320853515 U CN201320853515 U CN 201320853515U CN 203932967 U CN203932967 U CN 203932967U
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- China
- Prior art keywords
- voltage
- circuit
- triode
- stabiliser tube
- pulse generating
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- Expired - Lifetime
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- 239000003381 stabilizer Substances 0.000 claims abstract description 20
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a kind of coil controller, comprising: rectification circuit, the voltage stabilizing circuit and the coil driver that are connected with the anode of described rectification circuit; With the pulse generating circuit that the output of described voltage stabilizing circuit is connected, the output of this pulse generating circuit is connected with the control end of switching tube in described coil driver; Described pulse generating circuit comprises: voltage-stabiliser tube, the negative electrode of this voltage-stabiliser tube is connected with the output of described voltage stabilizing circuit, the anode of this voltage-stabiliser tube is connected with one end of electric capacity, the other end of this electric capacity is connected with the base stage of triode, the collector electrode of this triode is connected with the negative electrode of described voltage-stabiliser tube, and the emitter of described triode is connected with the control end of switching tube.The utility model forms a simple and easy pulse generator by voltage-stabiliser tube and electric capacity, controls triode conducting, so that the control end of switching tube obtains high level, makes switching tube conducting, and coil obtains electric control armature and threads off, to play the effect of protective circuit when the overvoltage.
Description
Technical field
The utility model relates to over-voltage protection technology field, concrete refers to a kind of coil controller.
Background technology
In power supply circuits, often there will be overvoltage fault.In the time there is overvoltage fault, as do not taked in time safeguard measure, when the maximum that exceedes some equipment when voltage is born voltage, will damage equipment, cause huge loss.Overvoltage protector is exactly the device for reducing the loss that this situation causes, and it can be detecting timely open circuit while having overvoltage fault in power supply circuits, protection equipment.
Existing " under-voltage " release, all without " overvoltage " tripping function.But in more occasion, as the night of industrial enterprise,, usually there is overvoltage phenomenon in the occasions such as the minor scale power net of small water conservancy generating and self power generation, naval vessel.Under overvoltage condition, make electrical installation, can have a strong impact on its useful life, performance and fail safe etc.So it is the important means of effective protective circuit breaker subordinate electric equipment safety that overvoltage is threaded off.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of coil controller, and this coil controller has solved the technical problem that overvoltage is threaded off.
In order to solve the problems of the technologies described above, the utility model provides a kind of coil controller, comprising: rectification circuit, the voltage stabilizing circuit and the coil driver that are connected with the anode of described rectification circuit; With the pulse generating circuit that the output of described voltage stabilizing circuit is connected, the output of this pulse generating circuit is connected with the control end of switching tube in described coil driver; Described pulse generating circuit comprises: voltage-stabiliser tube, the negative electrode of this voltage-stabiliser tube is connected with the output of described voltage stabilizing circuit, the anode of this voltage-stabiliser tube is connected with one end of electric capacity, the other end of this electric capacity is connected with the base stage of triode, the collector electrode of this triode is connected with the negative electrode of described voltage-stabiliser tube, and the emitter of described triode is connected with the control end of switching tube.
Technique scheme of the present utility model has the following advantages compared to existing technology: the utility model forms a simple and easy pulse generator by voltage-stabiliser tube and electric capacity; control triode conducting; so that the control end of switching tube obtains high level; make switching tube conducting; coil obtains electric control armature and threads off, to play the effect of protective circuit when the overvoltage.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, below the specific embodiment by reference to the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the circuit block diagram of coil controller of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
See Fig. 1, a kind of coil controller, comprising: rectification circuit BG, the voltage stabilizing circuit and the coil driver that are connected with the anode of described rectification circuit BG; With the pulse generating circuit that the output of described voltage stabilizing circuit is connected, the output of this pulse generating circuit is connected with the control end of switching tube Q1 in described coil driver; Described pulse generating circuit comprises: the first voltage-stabiliser tube Z1, the negative electrode of this first voltage-stabiliser tube Z1 is connected with the output of described voltage stabilizing circuit, the anode of this first voltage-stabiliser tube Z1 is connected with one end of capacitor C 1, the other end of this capacitor C 1 is connected with the base stage of triode Q2, the collector electrode of this triode Q2 is connected with the negative electrode of described the first voltage-stabiliser tube Z1, and the emitter of described triode Q2 is connected with the control end of switching tube Q1.
Wherein, described rectification circuit BG is bridge rectifier BG, and described voltage stabilizing circuit comprises: the first resistance R 1, filter capacitor C2 and the second voltage-stabiliser tube Z2 form.
In described pulse generating circuit, the emitter of described triode Q2 is also connected with one end of the second resistance R 2, and the base stage of described triode Q2 is also connected with one end of the 3rd resistance R 3, and the other end of described the second resistance R 2, the 3rd resistance R 3 is connected and ground connection.
In the time that input voltage is too high, voltage stabilizing circuit reaches certain value, exceedes after the first voltage-stabiliser tube Z1 limit value, produces impulse level make triode Q2 conducting through capacitor C 1; When after triode Q2 conducting, high level makes switching tube Q1 conducting, and drive coil FT makes coil FT in "on" position, and after triode Q2 pulse, switching tube Q1 cut-off, makes coil FT in non-power status.
In the technical solution of the utility model, described switching tube Q1 can adopt triode or metal-oxide-semiconductor to realize switching function, if adopt triode, control end is base stage; If employing metal-oxide-semiconductor, control end is the G utmost point.
Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And these belong to apparent variation that spirit of the present utility model extended out or variation still among protection range of the present utility model.
Claims (1)
1. a coil controller, comprising: rectification circuit, the voltage stabilizing circuit and the coil driver that are connected with the anode of described rectification circuit;
Characterized by further comprising: with the pulse generating circuit that the output of described voltage stabilizing circuit is connected, the output of this pulse generating circuit is connected with the control end of switching tube in described coil driver;
Described pulse generating circuit comprises: voltage-stabiliser tube, the negative electrode of this voltage-stabiliser tube is connected with the output of described voltage stabilizing circuit, the anode of this voltage-stabiliser tube is connected with one end of electric capacity, the other end of this electric capacity is connected with the base stage of triode, the collector electrode of this triode is connected with the negative electrode of described voltage-stabiliser tube, and the emitter of described triode is connected with the control end of switching tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853515.7U CN203932967U (en) | 2013-12-20 | 2013-12-20 | A kind of coil controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853515.7U CN203932967U (en) | 2013-12-20 | 2013-12-20 | A kind of coil controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932967U true CN203932967U (en) | 2014-11-05 |
Family
ID=51828722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853515.7U Expired - Lifetime CN203932967U (en) | 2013-12-20 | 2013-12-20 | A kind of coil controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146807A (en) * | 2019-06-05 | 2019-08-20 | 厦门立林电气控制技术有限公司 | A kind of trip coil monitoring circuit and monitoring method |
| CN110197780A (en) * | 2019-06-05 | 2019-09-03 | 厦门立林电气控制技术有限公司 | A kind of trip coil broken string monitoring circuit |
-
2013
- 2013-12-20 CN CN201320853515.7U patent/CN203932967U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146807A (en) * | 2019-06-05 | 2019-08-20 | 厦门立林电气控制技术有限公司 | A kind of trip coil monitoring circuit and monitoring method |
| CN110197780A (en) * | 2019-06-05 | 2019-09-03 | 厦门立林电气控制技术有限公司 | A kind of trip coil broken string monitoring circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: WENZHOU YONGQI ELECTRICAL TECHNOLOGY CO.,LTD. Person in charge of patents Document name: Notice of Termination of Patent Rights |
|
| DD01 | Delivery of document by public notice |