CN207399584U - Lamp-controlling circuit - Google Patents
Lamp-controlling circuit Download PDFInfo
- Publication number
- CN207399584U CN207399584U CN201721217855.5U CN201721217855U CN207399584U CN 207399584 U CN207399584 U CN 207399584U CN 201721217855 U CN201721217855 U CN 201721217855U CN 207399584 U CN207399584 U CN 207399584U
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- CN
- China
- Prior art keywords
- resistance
- transistor
- triode
- resistor
- lamp
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of lamp-controlling circuits, it includes first resistor etc., first resistor is connected with 3rd resistor, first resistor, one end of 3rd resistor is all connected with the first transistor base, first transistor collector is connected with second resistance, second resistance is in parallel with first resistor, first transistor emitter is connected with the other end of 3rd resistor, second transistor base and second resistance, first transistor collector is connected, first transistor emitter, second transistor emitter, third transistor collector, 4th transistor collector all links together, first capacitance is connected with the 7th resistance, 6th resistance, 7th resistance is all connected with the second diode, second diode, 4th resistance is all connected with the second transistor collector.The utility model, which can realize sensor signal, eliminates clutter and envelope eapsulotomy, can prevent that triode device from the operations such as misleading.
Description
Technical field
The utility model is related to a kind of lamp-controlling circuits.
Background technology
Lamp-controlling circuit is for controlling the circuit of lamp, but the selection of the power device in existing lamp-controlling circuit is not very reasonable,
The wasting of resources is caused, it is less efficient, and protectiveness is poor, influences the stability of system, and headlight control and signal acquisition is caused to have
Error easily leads to chip maloperation.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of lamp-controlling circuits, and sensor signal can be realized
Clutter and envelope eapsulotomy are eliminated, can prevent that triode device from the operations such as misleading.
The utility model is to solve above-mentioned technical problem by following technical proposals：A kind of lamp-controlling circuit, feature
It is, including first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance,
One triode, the second triode, third transistor, the 4th triode, the first diode, the second diode, the first capacitance, first
Resistance is connected with 3rd resistor, and first resistor, one end of 3rd resistor are all connected with the first transistor base, the first triode collection
Electrode is connected with second resistance, and second resistance is in parallel with first resistor, the other end of the first transistor emitter and 3rd resistor
It is connected, the second transistor base is connected with second resistance, the first transistor collector, the first transistor emitter, the two or three pole
Pipe emitter, third transistor collector, the 4th transistor collector all link together, the first capacitance and the 7th resistance string
Connection, the 6th resistance, the 7th resistance is all connected with the second diode, the second diode, the 4th resistance all with the second triode current collection
Pole connects, and the 4th resistance, the collector of the second triode are all connected with the base stage of third transistor, the emitter of third transistor
It is connected with the base stage of the 4th triode, the 5th resistance, emitter of first diode all with the 4th triode are connected.
Preferably, first triode, the second triode all use a kind of NPN type triode.
Preferably, the third transistor, the 4th triode all use a kind of PNP type triode.
Compared with prior art, the present invention has following advantageous effect：
First, the utility model utilizes dynatron performance, builds lamp-controlling circuit, realizes small-signal control high current；
2nd, the utility model increases resistance protection Primary Component, prevents device failure, and raising efficiency reduces loss.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model lamp-controlling circuit.
Specific embodiment
The utility model preferred embodiment is provided below in conjunction with the accompanying drawings, the technical solution of the utility model is described in detail.
As shown in Figure 1, the utility model lamp-controlling circuit includes first resistor R1, second resistance R2,3rd resistor R3, the 4th
Resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the first triode Q1, the second triode Q2, third transistor
Q3, the 4th triode Q4, the first diode D1, the second diode D2, the first capacitance C1, first resistor R1 and 3rd resistor R3 go here and there
Connection, first resistor R1, one end of 3rd resistor R3 be all connected with the first triode Q1 base stages, the first triode Q1 collectors and the
Two resistance R2 are connected, and second resistance R2 is in parallel with first resistor R1, and the first triode Q1 emitters are another with 3rd resistor R3's
End is connected, and the second triode Q2 base stages are connected with second resistance R2, the first triode Q1 collectors, the first triode Q1 transmittings
Pole, the second triode Q2 emitters, third transistor Q3 collectors, the 4th triode Q4 collectors all link together, and first
Capacitance C1 connects with the 7th resistance R7, and the 6th resistance R6, the 7th resistance R7 are connected with the second diode D2, the second diode
D2, the 4th resistance R4 are connected with the second triode Q2 collectors, and the 4th resistance R4, the collector of the second triode Q2 are all with
The base stage connection of three triode Q3, the emitter of third transistor Q3 are connected with the base stage of the 4th triode Q4, the 5th resistance R5,
Emitters of the first diode D1 all with the 4th triode Q4 is connected, and can so be reduced the interference of input signal and be ensured input letter
Number integrality, ensure system control accuracy.
The first triode Q1, the second triode Q2, so can amplification levels using a kind of NPN type triode.
The third transistor Q3, the 4th triode Q4 use a kind of PNP type triode, can so facilitate control level.
The operation principle of the utility model is as follows：From first port 1 into control circuit, control circuit needs sensor signal
In second port 2 circuit is provided to circuit for lamp；It is in need simultaneously that signal mode chip in the block is received to chip by third port 3
Send signal；Wherein the first triode Q1, the second triode Q2 are small-signal triode, and the connection of the two common emitter can make first end
Mouthful 1 and the signal of third port 3 be consistent, that is, be all low level or be all high level；The conducting of second triode Q2 simultaneously
Control action is played to third transistor Q3 with disconnecting, completes the Push And Release of circuit for lamp；The cathode of second diode D2 collects low
Level signal will be passed to chip by third port 3, and chip will generate corresponding control action.First is set in first port 1
Resistance R1 (pull-up resistor), 3rd resistor R3 (pull down resistor), the first capacitance, are matched by rational parameter, can be to sensing
Device signal, which is realized, eliminates clutter and envelope eapsulotomy, can prevent that triode device from the operations such as misleading；Resistance parameter can so be passed through
Matching, reduce the interference of input signal and ensure the integrality of input signal, ensure system control accuracy；Control circuit
Design be more bonded actual use demand, when lamp does not work, there is no electric current streams to collector for the emitter of third transistor Q3
It crosses, additional loss will not be caused, protect Primary Component；And similar such small-signal controls the feelings of high current in actual production
Condition can refer to this circuit and carry out relevant optimization design.First capacitance C1 strengthens the antijamming capability of signal.One or two pole
Pipe D1, the second diode D2 enhance the guarantor to the 4th triode Q4 and control chip (by 3 access chip of third port) respectively
Shield acts on.
Particular embodiments described above, the technical issues of to the solution of the utility model, technical solution and advantageous effect
It has been further described, it should be understood that the foregoing is merely specific embodiment of the utility model, not
For limiting the utility model, within the spirit and principle of the utility model, any modification for being made, equivalent substitution change
Into etc., it should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of lamp-controlling circuit, which is characterized in that it includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th
Resistance, the 6th resistance, the 7th resistance, the first triode, the second triode, third transistor, the 4th triode, the one or two pole
Pipe, the second diode, the first capacitance, first resistor are connected with 3rd resistor, and first resistor, one end of 3rd resistor are all with first
Transistor base is connected, and the first transistor collector is connected with second resistance, and second resistance is in parallel with first resistor, the one or three pole
Pipe emitter is connected with the other end of 3rd resistor, and the second transistor base is connected with second resistance, the first transistor collector,
First transistor emitter, the second transistor emitter, third transistor collector, the 4th transistor collector are all connected to one
It rises, the first capacitance is connected with the 7th resistance, and the 6th resistance, the 7th resistance are all connected with the second diode, the second diode, the 4th
Resistance is all connected with the second transistor collector, the base stage of the 4th resistance, the collector of the second triode all with third transistor
Connection, the emitter of third transistor is connected with the base stage of the 4th triode, the 5th resistance, the first diode all with the four or three pole
The emitter connection of pipe.
2. lamp-controlling circuit as described in claim 1, which is characterized in that first triode, the second triode all use one
Kind NPN type triode.
3. lamp-controlling circuit as described in claim 1, which is characterized in that the third transistor, the 4th triode all use one
Kind PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721217855.5U CN207399584U (en) | 2017-09-21 | 2017-09-21 | Lamp-controlling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721217855.5U CN207399584U (en) | 2017-09-21 | 2017-09-21 | Lamp-controlling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207399584U true CN207399584U (en) | 2018-05-22 |
Family
ID=62404848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721217855.5U Expired - Fee Related CN207399584U (en) | 2017-09-21 | 2017-09-21 | Lamp-controlling circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207399584U (en) |
-
2017
- 2017-09-21 CN CN201721217855.5U patent/CN207399584U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |