CN110137033A - A kind of novel bridge type DC control circuit - Google Patents
A kind of novel bridge type DC control circuit Download PDFInfo
- Publication number
- CN110137033A CN110137033A CN201810136457.3A CN201810136457A CN110137033A CN 110137033 A CN110137033 A CN 110137033A CN 201810136457 A CN201810136457 A CN 201810136457A CN 110137033 A CN110137033 A CN 110137033A
- Authority
- CN
- China
- Prior art keywords
- relay switch
- control circuit
- exciting coil
- bridge type
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
Landscapes
- Relay Circuits (AREA)
Abstract
The present invention relates to a kind of novel bridge type DC control circuits, including a single-pole double-throw relay switch, a metal-oxide-semiconductor, two reversed freewheeling diodes and two IGBT；Using the advantage of relay and IGBT respectively, relay switch, metal-oxide-semiconductor, IGBT are successively controlled, high current magnet exciting coil can be driven；And circuit is simple, economical, reliable.
Description
Technical field
The present invention relates to a kind of novel bridge type DC control circuits, belong to power equipment control protection technique field.
Background technique
Magneto height voltage breaker, the contactor occurred in recent years is to drive permanent magnetism by the controller of permanent-magnetic switching
Dynamic iron core in mechanism moves above and below, realizes combined floodgate and separating brake basic operational functions；Magnet exciting coil in permanent magnet mechanism need compared with
Big driving current, currently used circuit have: using 4 IGBT modules as bridge drive circuit, higher cost, in fast quick-action
Make in control process, the proportion of goods damageds are relatively high.
Summary of the invention
The purpose of the present invention is to solve the above problem and provides a kind of novel bridge type DC control circuit.Using relay
The bridge drive circuit of switch, two reversed and Schottky diodes connect and two IGBT composition, than the bridge of 4 IGBT modules
Formula driving circuit at least reduces by one group of driving power, and interface circuit is simple；Meanwhile at relay switch contacts both ends and connecing bypass
Metal-oxide-semiconductor can protect relay contact.
The present invention solves the above problems by the following technical programs:
A kind of novel bridge type DC control circuit includes a single-pole double throw or dpdt relay switch, two IGBT, two
A Schottky freewheeling diode, a metal-oxide-semiconductor.Wherein the cathode of diode D1D2, relay switch common (1) and
The D foot of metal-oxide-semiconductor is connecting power supply just, normally-closed contact (2), the anode of D1,2 feet of IGBT1 and the magnet exciting coil (4) of relay switch
N-terminal be connected, normally opened contact (3), the anode of D2, the S foot of metal-oxide-semiconductor, (2) foot of IGBT2 and the excitation wire of relay switch
The end S of circle (4) is connected；It is negative that 3 feet of IGBT1, IGBT2 connect power supply.
Detailed description of the invention
Fig. 1 is implementing circuit figure of the present invention
Specific embodiment
Comparative diagram 1, a kind of novel bridge type DC control circuit include a single-pole double-throw relay switch, two IGBT,
Two Schottky freewheeling diodes, a metal-oxide-semiconductor.
Wherein the cathode of diode D1D2, relay switch SW1 common (1) connect power supply with the D foot of metal-oxide-semiconductor
Just, the normally-closed contact (2) of relay switch SW1, the anode of diode D1, IGBT1 2 feet be connected with the N-terminal of magnet exciting coil (4)
It connects, normally opened contact (3), the anode of diode D2, the S foot of metal-oxide-semiconductor, (2) foot of IGBT2 and the excitation wire of relay switch SW1
The end S of circle (4) is connected；It is negative that 3 feet of IGBT1, IGBT2 connect power supply.
The course of work of the circuit is: when needing magnet exciting coil (4) forward driving, controlling relay switch first
SW1 is thrown to normally opened contact (3), i.e. the common (1) of relay switch SW1 is connected with normally opened contact (3), then controlled
IGBT1 conducting, makes electric current from the common (1) of the decent relay switch SW1 of power supply, normally opened contact (3), magnet exciting coil (4)
It is negative that power supply is flowed into IGBT1；After magnet exciting coil (4) drives external equipment movement, control IGBT1 cut-off；Metal-oxide-semiconductor (5) are controlled again
Conducting, makes by-path turn-on between the common (1) of relay switch SW1 and normally opened contact (3), and control relay switch SW1 is multiple
Position, common (1) and normally opened contact (3) disconnect；Metal-oxide-semiconductor (5) conducting can protect relay contact；Finally control metal-oxide-semiconductor
(5) end, complete the cutting of forward driving magnet exciting coil circuit.
When needing magnet exciting coil (4) to be driven in the reverse direction, relay switch SW1 keeps normally-closed contact conducting, then controls IGBT2
Conducting, electric current from power supply just, the common of relay switch SW1 (1), normally-closed contact (2), magnet exciting coil (4) and IGBT2 flow
Negative to electric current, after magnet exciting coil (4) drives external equipment movement, control IGBT2 cut-off, completion is driven in the reverse direction magnet exciting coil circuit
Cutting.
A kind of novel bridge type DC control circuit replaces four to hold high using a cheap relay and two IGBT
Expensive IGBT module, interface circuit is simple, and cost is greatly lowered；Relay contact loss can be effectively controlled in practical,
Effectively eliminate the damage of circuit element.
Claims (5)
1. a kind of novel bridge type DC control circuit, it is characterised in that including a relay switch, a metal-oxide-semiconductor, two it is anti-
To freewheeling diode and two IGBT.
2. a kind of novel bridge type DC control circuit according to claim 1, it is characterised in that relay switch SW1's is normally closed
Contact (2), normally opened contact (3) are the upper bridge arms of bridge-type DC control circuit, are connected by the common (1) of relay switch SW1
Connect power supply just；IGBT1, IGBT2 are the lower bridge arms of bridge-type DC control circuit, connect power supply by 3 feet of IGBT1, IGBT2 and bear.
3. a kind of novel bridge type DC control circuit according to claim 1, it is characterised in that relay switch SW1's is public
Contact (1), normally opened contact (3) and the metal-oxide-semiconductor (5) being attempted by between two contacts contact together magnet exciting coil (4) and IGBT1 composition
The forward driving circuit of magnet exciting coil (4), it is between the common (1) of relay switch SW1, normally-closed contact (2) and reversed
It is protected to diode D1.
4. a kind of novel bridge type DC control circuit according to claim 1, it is characterised in that relay switch SW1's is public
Contact (1), normally-closed contact (2) series winding magnet exciting coil (4) and IGBT2 form magnet exciting coil (4) and are driven in the reverse direction circuit, in relay
Between the common (1) of device switch SW1, normally opened contact (3) and connect backward dioded D2 protection.
5. a kind of novel bridge type DC control circuit according to claim 1, it is characterised in that relay switch SW1 can be selected
With single-pole double throw or dpdt relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136457.3A CN110137033A (en) | 2018-02-09 | 2018-02-09 | A kind of novel bridge type DC control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136457.3A CN110137033A (en) | 2018-02-09 | 2018-02-09 | A kind of novel bridge type DC control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110137033A true CN110137033A (en) | 2019-08-16 |
Family
ID=67568165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810136457.3A Pending CN110137033A (en) | 2018-02-09 | 2018-02-09 | A kind of novel bridge type DC control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220221612A1 (en) * | 2020-03-31 | 2022-07-14 | Hunan University Of Science And Technology | Device and method for reducing turn-off time of transient electromagnetic transmitting signal |
-
2018
- 2018-02-09 CN CN201810136457.3A patent/CN110137033A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220221612A1 (en) * | 2020-03-31 | 2022-07-14 | Hunan University Of Science And Technology | Device and method for reducing turn-off time of transient electromagnetic transmitting signal |
| US11762122B2 (en) * | 2020-03-31 | 2023-09-19 | Hunan University Of Science And Technology | Device and method for reducing turn-off time of transient electromagnetic transmitting signal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106716583B (en) | Direct current cutter | |
| CN106663557B (en) | For interrupting the separating switch of DC current | |
| CN106532794B (en) | Grass trimmer | |
| CN107863276B (en) | Self-protection direct current contactor drive circuit | |
| CN208157324U (en) | A kind of novel bridge type DC control circuit | |
| CN108718193A (en) | A kind of Drive Protecting Circuit and its control method of power semiconductor | |
| US8248738B2 (en) | Switching device, high power supply system and methods for switching high power | |
| CN101710548A (en) | Blow-out circuit of relay and method | |
| CN109950866A (en) | Current cut-off | |
| CN110137033A (en) | A kind of novel bridge type DC control circuit | |
| CN203799965U (en) | Pulse polarity conversion module of composite switch | |
| CN111727487B (en) | Direct current circuit breaker | |
| US20190312423A1 (en) | Low-voltage protective device | |
| CN109510556A (en) | A kind of positive and negative rotation module of three-phase motor | |
| JP6143615B2 (en) | DC switch | |
| CN209200964U (en) | A kind of positive and negative rotation module of three-phase motor | |
| CN103762125B (en) | Brake switch-off and switch-on controller of high voltage alternating-current circuit breaker | |
| CN102684565A (en) | Direct current motor driver | |
| CN106298364A (en) | A kind of single twin coil magnetic latching relay driving method | |
| CN101252059B (en) | Bistable state permanent magnetism alternating current contactor with rapid charging and discharging control characteristics | |
| JP6284827B2 (en) | Switch | |
| KR20140062845A (en) | Complex switch and switching method using the same | |
| JP2015230849A (en) | Switch | |
| CN109637892A (en) | A kind of direct current is after electrical switching circuit | |
| CN201285715Y (en) | Pulse excitation circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190816 |