CN207559898U - Cycling switch control circuit - Google Patents
Cycling switch control circuit Download PDFInfo
- Publication number
- CN207559898U CN207559898U CN201721399751.0U CN201721399751U CN207559898U CN 207559898 U CN207559898 U CN 207559898U CN 201721399751 U CN201721399751 U CN 201721399751U CN 207559898 U CN207559898 U CN 207559898U
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- unit
- electrically connected
- resistance
- circuit unit
- triode
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- 230000001351 cycling effect Effects 0.000 title claims abstract description 18
- 239000004065 semiconductor Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The utility model discloses a kind of cycling switch control circuits, it includes battery unit, switching circuit unit, motor drive unit and breaking circuit unit, two input terminals of switching circuit unit are electrically connected respectively with the both ends of battery unit, and the output terminal of switching circuit unit is electrically connected with the control terminal of motor drive circuit unit；The both ends of battery unit are electrically connected in two input terminals of motor drive circuit unit, and breaking circuit unit is electrically connected with switching circuit unit, the output terminal of the output terminal corresponding switch circuit unit of breaking circuit unit.The utility model is electrically connected by switch unit and zener diode, it avoids being in low-voltage in battery unit and getting down from horse being in operating state up to unit, the break-make of the second triode is recycled to control the break-make of the first triode, and then control the break-make of third transistor, so as to control the operating state of motor unit, realize the cycling switch function of motor unit, eliminate the high of MCU controllers, cost structure is simple, of low cost.
Description
Technical field
The utility model is related to consumer electronics field, more particularly, to a kind of cycling switch control circuit.
Background technology
The drive motor of current most shaver or hair scissors is controlled by MCU controllers or self-lock switch
System, and the cost of MCU controllers or self-lock switch is higher, is very not cost-effective from cost performance, how to maximize saving
The production cost of motor drive circuit, the technical issues of becoming urgent need to resolve.
Utility model content
Based on this, it is necessary to for above-mentioned background technology there are the problem of, a kind of cycling switch control circuit, structure are provided
Simply, it is of low cost, motor drive switch function can be realized well.
To achieve the above object, it the utility model discloses a kind of cycling switch control circuit, including battery unit, opens
Close circuit unit, motor drive unit and breaking circuit unit, two input terminals of the switching circuit unit respectively with battery list
The both ends of member are electrically connected, and the output terminal of the switching circuit unit is electrically connected with the control terminal of motor drive circuit unit；
The both ends of battery unit are electrically connected in two input terminals of the motor drive circuit unit, and the breaking circuit unit is with opening
It closes circuit unit to be electrically connected, the output terminal of the output terminal corresponding switch circuit unit of the breaking circuit unit.
In one of the embodiments, the switching circuit unit include switch unit, zener diode, first resistor,
Second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first triode and the second triode, the anode of the battery unit
It is electrically connected respectively with switch unit one end, the emitter of the first triode and the 4th resistance one end by first resistor, it is described
The 4th resistance other end is electrically connected respectively with the base stage of the first triode and the 5th resistance one end, the 5th resistance other end
It is electrically connected with the collector of the second triode；The cathode of the switch unit other end and zener diode is electrically connected, institute
The anode of zener diode is stated to be electrically connected with second resistance one end, the second resistance other end respectively with 3rd resistor one end
And second the base stage of triode be electrically connected, the collector electric connection of the 3rd resistor other end and the first triode, institute
The cathode of emitter and battery unit for stating the second triode is electrically connected.
The motor drive circuit unit includes third transistor and motor unit in one of the embodiments, described
The anode of battery unit by the emitter of first resistor and third transistor be electrically connected, the base stage of the third transistor with
The base stage of first triode is electrically connected so that third transistor and the break-make synchronization action of the first triode, the described 3rd 3
The collector of pole pipe is electrically connected motor unit one end, and the motor unit other end is electrically connected the cathode of battery unit.
In one of the embodiments, the breaking circuit unit include the 6th resistance, the 7th resistance, the first diode,
The anode of first capacitance and the first metal-oxide-semiconductor, described 6th resistance one end and zener diode is electrically connected, and the 6th resistance is another
One end and the first diode are electrically connected, the cathode of first diode respectively with first capacitance one end, the 7th resistance one end
And first metal-oxide-semiconductor grid be electrically connected, the source electrode of the first capacitance other end, the 7th resistance other end and the first metal-oxide-semiconductor
It is grounded respectively.
In conclusion the utility model cycling switch control circuit is electrically connected by switch unit and zener diode,
It avoids being in low-voltage in battery unit and getting down from horse being in operating state up to unit, the break-make of the second triode is recycled to control
The break-make of first triode, and then the break-make of third transistor is controlled, so as to control the operating state of motor unit；It is meanwhile long
Energy storage is carried out to the first capacitance by switch unit so that the first triode and third transistor are in cut-off state, so as to allow horse
It is acted up to unit stopping, so realizing the cycling switch function of motor unit, eliminate the high of MCU controllers, cost structure
Simply, it is of low cost.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model cycling switch control circuit.
Specific embodiment
As shown in Figure 1, the utility model cycling switch control circuit include battery unit 100, switching circuit unit 200,
Motor drive circuit unit 300 and breaking circuit unit 400, two input terminals of the switching circuit unit 200 respectively with battery
The both ends of unit 100 are electrically connected, the output terminal of the switching circuit unit 200 and the control of motor drive circuit unit 300
End is electrically connected, for the unlatching of drive motor drive circuit unit 300；Two inputs of the motor drive circuit unit 300
The both ends of battery unit 100 are electrically connected in end, and the breaking circuit unit 400 is electrically connected with switching circuit unit 200,
The output terminal of the output terminal corresponding switch circuit unit 200 of the breaking circuit unit 400, for drive motor driving circuit list
The disconnection of member 300.
The switching circuit unit 200 include switch unit SW, zener diode ZD, first resistor R1, second resistance R2,
3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the first triode Q1 and the second triode Q2, the battery unit 100
Anode is electric with switch unit SW one end, the emitter of the first triode Q1 and the 4th resistance R4 one end respectively by first resistor R1
Property connection, the 4th resistance R4 other ends are electrically connected respectively with the base stage of the first triode Q1 and the 5th resistance R5 one end,
The collector of the 5th resistance R5 other ends and the second triode Q2 are electrically connected；The switch unit SW other ends and voltage stabilizing
The cathode of diode ZD is electrically connected, and anode and second resistance R2 one end of the zener diode ZD are electrically connected, and described the
The two resistance R2 other ends are electrically connected respectively with the base stage of 3rd resistor R3 one end and the second triode Q2, the 3rd resistor R3
The collector of the other end and the first triode Q1 are electrically connected, emitter and the battery unit 100 of the second triode Q2
Cathode be electrically connected.
The breaking circuit unit 400 includes third transistor Q3 and motor unit M, the anode of the battery unit 100
It is electrically connected by the emitter of first resistor R1 and third transistor Q3, base stage and the one or three pole of the third transistor Q3
The base stage of pipe Q1 is electrically connected so that the break-make synchronization action of third transistor Q3 and the first triode Q1, the three or three pole
The collector of pipe Q3 is electrically connected motor unit M one end, and the motor unit M other ends are electrically connected the negative of battery unit 100
Pole.
The breaking circuit unit 400 includes the 6th resistance R6, the 7th resistance R7, the first diode D1, the first capacitance C1
And the first metal-oxide-semiconductor Q4, described 6th resistance R6 one end and the anode of zener diode ZD are electrically connected, the 6th resistance R6 is another
One end and the first diode D1 are electrically connected, the cathode of the first diode D1 respectively with first capacitance C1 one end, the 7th electricity
The grid for hindering R7 one end and the first metal-oxide-semiconductor Q4 is electrically connected, the first capacitance C1 other ends, the 7th resistance R7 other ends and the
The source electrode of one metal-oxide-semiconductor Q4 is grounded respectively.
Wherein, the voltage between first resistor R1 and switch unit SW is set as first voltage Va, zener diode ZD's
Anode terminal voltage is that the base stage terminal voltage of second voltage Vb, the second triode Q2 are tertiary voltage Vc, the base of the first triode Q1
Extreme voltage is the 4th voltage Vd, and the cathode terminal voltage of the first diode D1 is the 5th voltage Vc1.
The utility model concrete operating principle is as follows, and when pressing switch unit SW, the voltage of battery unit 100 passes through enough
Zener diode ZD is crossed, at this point, the setting voltage of second voltage Vb=first voltage Va- zener diodes ZD, battery unit 100
Voltage be less than zener diode ZD setting voltage when, switching circuit unit 200 will not act, to avoid in battery list
Member 100 was in low-voltage and gets down from horse is in operating state up to unit M；After second voltage Vb is more than 0.7V, loop current flows through
Second resistance R2, and then the second triode Q2 conductings are driven, tertiary voltage Vc is less than first voltage Va, meanwhile, current path is protected
It holds in first resistor R1, the 4th resistance R4 and the 5th resistance R5 directions, the 4th voltage Vd is less than first voltage Va, the first triode
Q1 and third transistor Q3 are respectively at conducting state, then motor unit M is in operating state；When the first triode Q1 is connected
Afterwards, tertiary voltage Vc drives the second triode Q2 to continue to be connected, so third transistor Q3 is still after switch unit SW unclamps
In the conduction state, motor unit M keeps operating state.
When pressing switch unit SW more than 2 seconds, second voltage Vb charges to the first capacitance C1 by the 6th resistance R6,
When the charging voltage of the first capacitance C1 reaches 1V, i.e. the 5th voltage Vc1 reaches 1V, then the first metal-oxide-semiconductor Q4 is driven to be connected, and first
Tertiary voltage Vc is grounded after metal-oxide-semiconductor Q4 conductings, then the second triode Q2 is in cut-off state；First after second triode Q2 cut-offs
Voltage Va is suitable with the voltage value of the 4th voltage Vd, and the first triode Q1 and third transistor Q3 are respectively at cut-off state, the
Motor unit M stops operating after three triode Q3 are disconnected；After trip switch cell S W, there is voltage to cause on the first capacitance C1
First metal-oxide-semiconductor Q4 keeps conducting state, and the first capacitance of discharge process by the 7th resistance R7 was then passed through after 1~2 second
Voltage on C1 is less than the driving voltage of the first metal-oxide-semiconductor Q4, the first metal-oxide-semiconductor Q4 cut-offs.
Switch unit SW is clicked again, and motor unit M continues to operate, and so realizes the cycling switch function of motor unit M.
In conclusion the utility model cycling switch control circuit is electrically connected by switch unit SW and zener diode ZD
It connects, avoids being in low-voltage in battery unit 100 and getting down from horse being in operating state up to unit M, recycle the second triode Q2's
Break-make controls the break-make of the first triode Q1, and then control the break-make of third transistor Q3, so as to control the fortune of motor unit M
Make state；Meanwhile long-press switch unit SW carries out energy storage to the first capacitance C1 so that the first triode Q1 and third transistor Q3
In cut-off state, so as to which motor unit M stoppings be allowed to act, so realize the cycling switch function of motor unit M, eliminate
MCU controllers it is high, cost structure is simple, of low cost.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (4)
1. a kind of cycling switch control circuit, it is characterised in that：Including battery unit, switching circuit unit, motor drive unit
And breaking circuit unit, two input terminals of the switching circuit unit are electrically connected respectively with the both ends of battery unit, described to open
The control terminal of output terminal and motor drive circuit unit for closing circuit unit is electrically connected；The two of the motor drive circuit unit
The both ends of battery unit are electrically connected in input terminal, and the breaking circuit unit is electrically connected with switching circuit unit, described
The output terminal of the output terminal corresponding switch circuit unit of breaking circuit unit.
2. cycling switch control circuit according to claim 1, it is characterised in that：The switching circuit unit includes switch
Unit, zener diode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first triode and second
Triode, the anode of the battery unit by first resistor respectively with switch unit one end, the first triode emitter and
4th resistance one end is electrically connected, and the 4th resistance other end is electric with the base stage of the first triode and the 5th resistance one end respectively
Property connection, the collector electric connection of the 5th resistance other end and the second triode；The switch unit other end with it is steady
The cathode of diode is pressed to be electrically connected, anode and second resistance one end of the zener diode are electrically connected, second electricity
It hinders the other end to be electrically connected with the base stage of 3rd resistor one end and the second triode respectively, the 3rd resistor other end and first
The collector of triode is electrically connected, and the emitter of second triode and the cathode of battery unit are electrically connected.
3. cycling switch control circuit according to claim 2, it is characterised in that：The motor drive circuit unit includes
Third transistor and motor unit, the anode of the battery unit are electrically connected by the emitter of first resistor and third transistor
It connects, the base stage of the third transistor and the base stage of the first triode are electrically connected so that third transistor and the first triode
Break-make synchronization action, the collector of the third transistor is electrically connected motor unit one end, the motor unit other end
It is electrically connected the cathode of battery unit.
4. cycling switch control circuit according to claim 2, it is characterised in that：The breaking circuit unit includes the 6th
The sun of resistance, the 7th resistance, the first diode, the first capacitance and the first metal-oxide-semiconductor, described 6th resistance one end and zener diode
Pole is electrically connected, the electric connection of the 6th resistance other end and the first diode, the cathode of first diode respectively with
The grid of first capacitance one end, the 7th resistance one end and the first metal-oxide-semiconductor is electrically connected, the first capacitance other end, the 7th electricity
The source electrode of the resistance other end and the first metal-oxide-semiconductor is grounded respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721399751.0U CN207559898U (en) | 2017-10-26 | 2017-10-26 | Cycling switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721399751.0U CN207559898U (en) | 2017-10-26 | 2017-10-26 | Cycling switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207559898U true CN207559898U (en) | 2018-06-29 |
Family
ID=62674831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721399751.0U Expired - Fee Related CN207559898U (en) | 2017-10-26 | 2017-10-26 | Cycling switch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207559898U (en) |
-
2017
- 2017-10-26 CN CN201721399751.0U patent/CN207559898U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 |