CN209105137U - A kind of bidirectional electronic switch circuit - Google Patents
A kind of bidirectional electronic switch circuit Download PDFInfo
- Publication number
- CN209105137U CN209105137U CN201822238483.5U CN201822238483U CN209105137U CN 209105137 U CN209105137 U CN 209105137U CN 201822238483 U CN201822238483 U CN 201822238483U CN 209105137 U CN209105137 U CN 209105137U
- Authority
- CN
- China
- Prior art keywords
- semiconductors
- circuit
- oxide
- metal
- driving power
- 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.)
- Active
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model discloses a kind of bidirectional electronic switch circuits, it is formed including switching circuit, driving circuit and driving power, the switching circuit is made of two metal-oxide-semiconductors, the source electrode of two metal-oxide-semiconductors is connected, the grid of two metal-oxide-semiconductors is connected, and the driving circuit is made of a transistor, two resistance, and the collector of transistor connects the anode of driving power by a resistance, the transmitter of triode connects the cathode of driving power, and the collector of triode connects another resistance one end.The bidirectional electronic switch circuit, switching speed than relay switching speed much faster, suitable for doing the occasion of high-frequency switching；And the on-off times of MOS are also more much more than the on-off times of relay；MOS will not generate arc discharge, more secure and reliable in switching process without mechanical contact；Compared with silicon-controlled, the utility model, there is no limit condition, closes the switch and turns off the low and high level for being solely dependent upon control signal to load terminal voltage electric current.
Description
Technical field
The utility model belongs to electronic circuit technology field, and in particular to a kind of bidirectional electronic switch circuit.
Background technique
Silicon-controlled and relay can be used for the program controlled switch control of AC signal at present to realize.And bidirectional, dc is believed
Number switch control, due to it is silicon-controlled by condition limit, relay can only be used as switch element.From control speed
On, relay control system realizes that working frequency is low, and the switch motion of contact is generally tens by the movement of mechanical contact
The millisecond order of magnitude, and mechanical contact there is also jitter problem.From reliability, since relay control uses mechanical contact,
Contact closure phenomena such as there are mechanical wears, electric arc burn, contact endurance is short, so reliability is poor.
Utility model content
The purpose of this utility model is to provide a kind of bidirectional electronic switch circuits, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of bidirectional electronic switch circuit, including opens
Powered-down road, driving circuit and driving power composition, the switching circuit are made of two metal-oxide-semiconductors, and the source electrode of two metal-oxide-semiconductors is connected
It connects, the grid of two metal-oxide-semiconductors is connected, and the driving circuit is made of a transistor, two resistance, transistor
Collector the anode of driving power is connect by a resistance, the transmitter of triode connects the cathode of driving power, the collection of triode
Electrode connects another resistance one end.
Preferably, driving power is 12V DC power supply.
This is set as drive circuitry.
The technical effect and advantage of the utility model: the bidirectional electronic switch circuit, switch of the switching speed than relay
Speed much faster, suitable for doing the occasion of high-frequency switching；And the on-off times of MOS are also than the on-off times of relay
It is much more；MOS will not generate arc discharge, more secure and reliable in switching process without mechanical contact；Compared with silicon-controlled, controllably
Silicon cut-off condition, which requires to be less than by electric current, maintains electric current that could end, and the utility model does not limit load terminal voltage electric current
Condition processed closes the switch and turns off the low and high level for being solely dependent upon control signal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of bidirectional electronic switch circuit as shown in Figure 1, including switching circuit, driving circuit
It is formed with driving power, the switching circuit is made of two metal-oxide-semiconductors, and the source electrode of two metal-oxide-semiconductors is connected, and is inputted as driving
Cathode, the drain electrode of two metal-oxide-semiconductors respectively as the input pole of switch and output stage, meanwhile, input pole can be used as output stage,
Output stage can also be used as input pole and be used interchangeably, and is not necessarily to adjustment circuit, reaches double-direction control purpose；The grid of two metal-oxide-semiconductors
It is connected, as driving input anode；The driving circuit is made of a transistor, two resistance, transistor
Collector the anode of driving power, while output cathode of the collector of triode as driving circuit are connect by a resistance,
The transmitter of triode connects the cathode of driving power, as the public cathode of driving output and control input, the current collection of triode
Pole connects another resistance one end, and the other end of resistance is extremely positive as the input of control signal, and driving power is 12V DC power supply,
For drive circuitry.
The course of work is as follows, from control signal input anode input high level, the triode ON of driving circuit section,
The grid of two metal-oxide-semiconductors of switching circuit portion and source electrode are pulled into equipotential, two metal-oxide-semiconductors end simultaneously, and switch disconnects；From control
The input anode input low level of signal processed, the transistor cut-off of driving circuit section, the output of driving circuit section anode
The grid of 12V high level, two metal-oxide-semiconductors is 12V higher than source electrode, and two metal-oxide-semiconductors simultaneously turn on, and closes the switch.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of bidirectional electronic switch circuit, including switching circuit, driving circuit and driving power composition, it is characterised in that: institute
It states switching circuit to be made of two metal-oxide-semiconductors, the source electrode of two metal-oxide-semiconductors is connected, and the grid of two metal-oxide-semiconductors is connected, the drive
Dynamic circuit is made of a transistor, two resistance, and the collector of transistor connects driving power by a resistance
Anode, the transmitter of triode connect the cathode of driving power, and the collector of triode connects another resistance one end.
2. a kind of bidirectional electronic switch circuit according to claim 1, it is characterised in that: driving power is 12V DC electricity
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822238483.5U CN209105137U (en) | 2018-12-28 | 2018-12-28 | A kind of bidirectional electronic switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822238483.5U CN209105137U (en) | 2018-12-28 | 2018-12-28 | A kind of bidirectional electronic switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209105137U true CN209105137U (en) | 2019-07-12 |
Family
ID=67163500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822238483.5U Active CN209105137U (en) | 2018-12-28 | 2018-12-28 | A kind of bidirectional electronic switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209105137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401395A (en) * | 2019-08-26 | 2019-11-01 | 江苏协昌电子科技股份有限公司 | A kind of electronic type electric motor winding switching switch and system |
-
2018
- 2018-12-28 CN CN201822238483.5U patent/CN209105137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401395A (en) * | 2019-08-26 | 2019-11-01 | 江苏协昌电子科技股份有限公司 | A kind of electronic type electric motor winding switching switch and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200976577Y (en) | MOS tube driving circuit and television set having the same | |
| CN203659753U (en) | Driving circuit of relay | |
| CN107968569A (en) | A kind of synchronous rectifying controller and synchronous rectification control method | |
| CN202424662U (en) | IGBT (Insulated Gate Bipolar Transistor) driving device | |
| CN209105137U (en) | A kind of bidirectional electronic switch circuit | |
| CN205510006U (en) | Switching on and shutting down circuit and medical equipment | |
| CN105356437B (en) | A kind of anti-surge circuit | |
| CN202798044U (en) | Power control device | |
| CN206271398U (en) | Driving circuit for liquid crystal screen, control circuit, liquid crystal display and terminal equipment | |
| CN208971480U (en) | The DC power supply switch circuit that can be rapidly switched off and the electronic equipment using it | |
| CN208285214U (en) | A kind of stagnant ring driving device of low-power consumption | |
| CN204168121U (en) | A kind of metal-oxide-semiconductor parallel pulse drive circuit | |
| CN207368649U (en) | A kind of inrush current suppression circuit | |
| CN101437126A (en) | Power supply control method, circuit and television set | |
| CN211791470U (en) | Wireless switch circuit | |
| CN103633976A (en) | Single-key button multi-point group-control device | |
| CN203721638U (en) | Relay drive circuit | |
| CN209087695U (en) | A kind of control circuit of permanent magnetism coil | |
| CN206077216U (en) | A kind of efficient metal-oxide-semiconductor drive circuit | |
| CN105811948A (en) | Switching circuit, switching method and medical equipment | |
| CN207069876U (en) | DC arc-suppression circuits | |
| CN204716583U (en) | A kind of ac fan alignment circuit | |
| CN205385349U (en) | Controlling means based on independent zero passage of three phase current is turn -offed | |
| CN204651912U (en) | A kind of control circuit of high-speed circuit breaker | |
| CN105575729A (en) | Drive circuit of magnetic latching relay and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Shuguo Inventor after: Huang Chao Inventor before: Ma Shuguo |