CN205265649U - Control circuit based on triode switching action - Google Patents
Control circuit based on triode switching action Download PDFInfo
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- CN205265649U CN205265649U CN201521127805.9U CN201521127805U CN205265649U CN 205265649 U CN205265649 U CN 205265649U CN 201521127805 U CN201521127805 U CN 201521127805U CN 205265649 U CN205265649 U CN 205265649U
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Abstract
The utility model discloses a control circuit based on triode switching action, include: triode Q1, first resistance R1, signal relay K1, diode D1, second resistance R2, pilot lamp LED1. The utility model discloses a switching action of triode goes to realize simple signal relay's control, and simple high -low level provides, simple signal amplification etc. And the stable performance, the design is simple, and is with low costs, and the range of application is wide, is simple signal control, indispensable some control mode among the signal switch. It can release the temporal electromotive force energy of signal relay outage through setting up the diode, prevents that this strand of energy from causing the interference to circuit signal or other components, influences circuit performance and stability.
Description
Technical field:
The utility model belongs to control circuit technical field, specifically relates to a kind of control circuit based on triode switch effect.
Background technology:
Triode, full name should be transistor, also claims bipolar transistor, transistor, is a kind of semiconductor devices of controlling electric current. Its effect is that small-signal is zoomed into the signal of telecommunication that range value is larger, also as noncontacting switch. Transistor, is one of basic components and parts of semiconductor, has electric current amplification, is the core parts of electronic circuit. Triode is the PN junction of making two close proximity on a block semiconductor substrate, two PN junctions are divided into three parts monoblock semiconductor, mid portion is base, two side portions is launch site and collecting zone, arrangement mode has two kinds of PNP and NPN, and NPN and PNP are mainly the sense of current and the positive and negative difference of voltage.
When triode is used as switch, be operated in cut-off and saturated two states, generally control conducting and the disconnection of triode by the base voltage of triode, the on-off action of triode can realize the control of simple signal relay, but the existing control circuit mechanism complexity based on triode switch effect, circuit performance is unstable, and cost is high, range of application is narrow, is not simple signal controlling.
Utility model content:
For this reason, technical problem to be solved in the utility model is the control circuit mechanism complexity based on triode switch effect in prior art, and circuit performance is unstable, cost is high, range of application is narrow, is not simple signal controlling, thereby proposes a kind of control circuit based on triode switch effect.
For achieving the above object, the technical solution of the utility model is as follows:
Based on a control circuit for triode switch effect, comprising: triode Q1, the first resistance R 1, signal relay K1, diode D1, the second resistance R 2, indicator lamp LED1.
The base stage of described triode Q1 is by the first resistance R 1 interconnection network tie point ET1, and the emitting stage of described triode Q1 connects power supply VCC, and the colelctor electrode of described triode Q1 connects 8 pin of described signal relay K1.
The 1 pin ground connection of described signal relay K1,2 pin of described signal relay K1 are connected the first external circuit with 7 pin, and 3 pin of described signal relay K1 are connected the second external circuit with 6 pin, and 4 pin of described signal relay K1 are connected the 3rd external circuit with 5 pin.
The first end of described diode D1 connects the colelctor electrode of described triode Q1, the second end ground connection of described diode D1.
Described the second resistance R 2 and described indicator lamp LED1 series connection, the circuit after series connection is in parallel with the two ends of described diode D1.
As technique scheme preferably, described signal relay K1 is normal to be opened and closed while closing, 5 pin of described signal relay K1 and 6 pin closures, 3 pin of described signal relay K1 and 4 pin closures, 3 pin of described signal relay K1 and 6 pin are public pin;
When the normally closed disconnection of described signal relay K1,6 pin of described signal relay K1 and 7 pin closures, 2 pin of described signal relay K1 and 3 pin closures, 3 pin of described signal relay K1 and 6 pin are public pin.
As technique scheme preferably, described triode Q1 is positive-negative-positive triode, described triode Q1 chooses the positive-negative-positive silicon triode that model is S8550.
As technique scheme preferably, described signal relay K1 chooses the signal relay that model is RT114024.
As technique scheme preferably, described diode D1 chooses the switching diode that model is 1N4148.
As technique scheme preferably, described indicator lamp LED1 is used to indicate the duty of described signal relay K1, it is 0805 LED that described indicator lamp LED1 chooses model.
The beneficial effects of the utility model are: the utility model goes to realize the control of simple signal relay by the on-off action of triode, simple low and high level provides, simple signal amplification etc., stable performance, simplicity of design, cost is low, applied range, be simple signal control, signal can not rare control mode in switching. It is by diode is set, and electromotive force energy that can release signal relay power-off moment, prevents that this strand of energy from causing interference to circuit signal or other elements, affects circuit serviceability and stability.
Brief description of the drawings:
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model. Wherein:
Fig. 1 is a kind of control circuit based on triode switch effect of an embodiment of the utility model.
Detailed description of the invention:
As shown in Figure 1, the control circuit based on triode switch effect of the present utility model, comprising: triode Q1, the first resistance R 1, signal relay K1, diode D1, the second resistance R 2, indicator lamp LED1.
The base stage of described triode Q1 is by the first resistance R 1 interconnection network tie point ET1, and the emitting stage of described triode Q1 connects power supply VCC, and the colelctor electrode of described triode Q1 connects 8 pin of described signal relay K1. The optional suitable voltage of described power supply VCC. In the present embodiment, described triode Q1 is positive-negative-positive triode, and described triode Q1 chooses the positive-negative-positive silicon triode that model is S8550. Triode S8550 is a kind of conventional common triode, and it is a kind of low-voltage, large electric current, the positive-negative-positive silicon triode of small-signal. Described the first resistance R 1 is transistor base resistance, and in the present embodiment, described the first resistance R 1 is 330ohm/0603/1%.
The 1 pin ground connection of described signal relay K1,2 pin of described signal relay K1 are connected the first external circuit with 7 pin, and 3 pin of described signal relay K1 are connected the second external circuit with 6 pin, and 4 pin of described signal relay K1 are connected the 3rd external circuit with 5 pin. Described signal relay K1 is normal to be opened and closed while closing, 5 pin of described signal relay K1 and 6 pin closures, and 3 pin of described signal relay K1 and 4 pin closures, 3 pin of described signal relay K1 and 6 pin are public pin. When the normally closed disconnection of described signal relay K1,6 pin of described signal relay K1 and 7 pin closures, 2 pin of described signal relay K1 and 3 pin closures, 3 pin of described signal relay K1 and 6 pin are public pin. In the present embodiment, described signal relay K1 chooses the signal relay that model is RT114024.
The first end of described diode D1 connects the colelctor electrode of described triode Q1, the second end ground connection of described diode D1. The coil electromotive force that described diode D1 is signal relay K1 discharges diode, and in the present embodiment, described diode D1 chooses the switching diode that model is 1N4148. 1N4148 is a kind of small-sized cache switching diodes, and on-off ratio is rapider, is widely used in the circuit that signal frequency is higher and carries out one-way conduction isolation, communication, computer board, TV set circuit and industrial control circuit.
Described the second resistance R 2 and described indicator lamp LED1 series connection, the circuit after series connection is in parallel with the two ends of described diode D1. Described indicator lamp LED1 is used to indicate the duty of described signal relay K1, and it is 0805 LED that described indicator lamp LED1 chooses model. In the present embodiment, choosing described the second resistance R 2 is 1K/0603/1%.
Operation principle:
Network connection point ET1 provides a control level by MCU control end, is that transistor base resistance R 1 can change the now output level state of the colelctor electrode of triode Q1 through current-limiting resistance, and namely triode Q1 is now operated in saturated and conducting state.
In the time that triode Q1 is driven, signal relay K1 obtains electric, the status indicator lamp LED1 of signal relay K1 lights, signal relay K1 work, the normal switching of signal relay closed (5 pin of signal relay K1 and 6 pin closures, 3 pin of signal relay K1 and 4 pin closures, 3 pin of signal relay K1 and 6 pin are public pin), normally closed disconnection (6 pin of signal relay K1 and 7 pin closures, 2 pin of signal relay K1 and 3 pin closures, 3 pin of signal relay K1 and 6 pin are public pin), all have signal switch time, apply very simple and reliable.
In this circuit, the effect of diode D1 be can not ignore, and at this electromotive force energy that act as release signal relay power-off moment, prevents that this strand of energy from causing interference to circuit signal or other elements, affects circuit serviceability and stability.
The control circuit based on triode switch effect described in the present embodiment, comprising: triode Q1, the first resistance R 1, signal relay K1, diode D1, the second resistance R 2, indicator lamp LED1. The utility model goes to realize the control of simple signal relay by the on-off action of triode, simple low and high level provides, simple signal amplification etc., stable performance, simplicity of design, cost is low, applied range, is simple signal control, and signal can not rare control mode in switching. It is by diode is set, and electromotive force energy that can release signal relay power-off moment, prevents that this strand of energy from causing interference to circuit signal or other elements, affects circuit serviceability and stability.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment. 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 embodiments. And among the protection domain that the apparent variation of being extended out thus or variation are still created in the utility model.
Claims (6)
1. the control circuit based on triode switch effect, is characterized in that, comprising: triode Q1, the first resistance R 1, signal relay K1, diode D1, the second resistance R 2, indicator lamp LED1;
The base stage of described triode Q1 is by the first resistance R 1 interconnection network tie point ET1, and the emitting stage of described triode Q1 connects power supply VCC, and the colelctor electrode of described triode Q1 connects 8 pin of described signal relay K1;
The 1 pin ground connection of described signal relay K1,2 pin of described signal relay K1 are connected the first external circuit with 7 pin, and 3 pin of described signal relay K1 are connected the second external circuit with 6 pin, and 4 pin of described signal relay K1 are connected the 3rd external circuit with 5 pin;
The first end of described diode D1 connects the colelctor electrode of described triode Q1, the second end ground connection of described diode D1;
Described the second resistance R 2 and described indicator lamp LED1 series connection, the circuit after series connection is in parallel with the two ends of described diode D1.
2. the control circuit based on triode switch effect according to claim 1, is characterized in that:
Described signal relay K1 is normal to be opened and closed while closing, 5 pin of described signal relay K1 and 6 pin closures, and 3 pin of described signal relay K1 and 4 pin closures, 3 pin of described signal relay K1 and 6 pin are public pin;
When the normally closed disconnection of described signal relay K1,6 pin of described signal relay K1 and 7 pin closures, 2 pin of described signal relay K1 and 3 pin closures, 3 pin of described signal relay K1 and 6 pin are public pin.
3. the control circuit based on triode switch effect according to claim 1, is characterized in that:
Described triode Q1 is positive-negative-positive triode, and described triode Q1 chooses the positive-negative-positive silicon triode that model is S8550.
4. the control circuit based on triode switch effect according to claim 1, is characterized in that:
Described signal relay K1 chooses the signal relay that model is RT114024.
5. the control circuit based on triode switch effect according to claim 1, is characterized in that:
Described diode D1 chooses the switching diode that model is 1N4148.
6. the control circuit based on triode switch effect according to claim 1, is characterized in that:
Described indicator lamp LED1 is used to indicate the duty of described signal relay K1, and it is 0805 LED that described indicator lamp LED1 chooses model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521127805.9U CN205265649U (en) | 2015-12-30 | 2015-12-30 | Control circuit based on triode switching action |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521127805.9U CN205265649U (en) | 2015-12-30 | 2015-12-30 | Control circuit based on triode switching action |
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| CN205265649U true CN205265649U (en) | 2016-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656466A (en) * | 2015-12-30 | 2016-06-08 | 苏州博众精工科技有限公司 | Control circuit based on switching action of triode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656466A (en) * | 2015-12-30 | 2016-06-08 | 苏州博众精工科技有限公司 | Control circuit based on switching action of triode |
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Address after: The Wujiang economic and Technological Development Zone West Road Wujiang District of Suzhou City, Jiangsu Province, No. 666 215200 Patentee after: Bo Seiko Polytron Technologies Inc Address before: The Wujiang economic and Technological Development Zone West Road Wujiang District of Suzhou City, Jiangsu Province, No. 666 215200 Patentee before: Suzhou Bozhong Precision Industry Technology Co., Ltd. |