CN206441663U - A kind of relay drive circuit for portable power source - Google Patents
A kind of relay drive circuit for portable power source Download PDFInfo
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- CN206441663U CN206441663U CN201720083234.6U CN201720083234U CN206441663U CN 206441663 U CN206441663 U CN 206441663U CN 201720083234 U CN201720083234 U CN 201720083234U CN 206441663 U CN206441663 U CN 206441663U
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- resistance
- relay
- power source
- portable power
- drive circuit
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Abstract
The utility model discloses a kind of relay drive circuit for portable power source, including relay and 2 structure identical drive modules, the first described drive module includes the first control signal input circuit and 2 N metal-oxide-semiconductors Q9 and Q13；First control signal input circuit includes the resistance R52 and R19 of series connection；Resistance R52 the first termination control signal CTL START；Resistance R52 the second end is grounded through resistance R19；2 N metal-oxide-semiconductors Q9 and Q13 G are extremely shorted to resistance R52 and R19 tie point；2 N metal-oxide-semiconductors Q9 and Q13 S are extremely grounded；The first coil of relay is connected between 2 N metal-oxide-semiconductors Q9 and Q13 D poles and the positive pole BAT+ of accumulation power supply.The drive module that the relay drive circuit for being used for portable power source has double N metal-oxide-semiconductor drive modules realizes relay driving, and energy consumption is low, and reliability is high.
Description
Technical field
A kind of the utility model more particularly to relay drive circuit for portable power source, portable power source herein is vapour
Car startup power supply.
Background technology
With the popularization of automobile, automobile starting power industry also flourishes, and automobile starting power supply needs to discharge to automobile
, it is necessary to be switched over by relay during starting current, existing relay drive circuit is complicated, and reliability is not high, because
This, it is necessary to design a kind of new relay drive circuit for portable power source.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of relay drive circuit for portable power source, should
The drive module that relay drive circuit for portable power source has double N-MOS pipe drive modules realizes relay driving, energy
Consumption is low, and reliability is high.
The technical solution of utility model is as follows：
A kind of relay drive circuit for portable power source, including relay and the first drive module；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；Resistance R52 the first termination control signal
CTL-START；Resistance R52 the second end is grounded through resistance R19；2 N-MOS pipes Q9 and Q13 G are extremely shorted to resistance R52
With R19 tie point；2 N-MOS pipes Q9 and Q13 S are extremely grounded；2 N-MOS pipes Q9 and Q13 D poles and accumulation power supply
The first coil of relay is connected between positive pole BAT+.
The described relay drive circuit for portable power source also includes the second drive module；Described relay is double
Input line ring relay, with first coil and the second coil, and shares a pair of output contacts；
The second described drive module includes the second control signal input circuit and 2 N-MOS pipes Q1 and Q2；
Second control signal input circuit includes the resistance R2 and R7 of series connection；Resistance R2 the first termination control signal DAT；
Resistance R2 the second end is grounded through resistance R7；2 N-MOS pipes Q1 and Q2 G are extremely shorted to resistance R2 and R7 tie point；2
Individual N-MOS pipes Q1 and Q2 S are extremely grounded；It is connected between 2 N-MOS pipes Q1 and Q3 D poles and the positive pole BAT+ of accumulation power supply
Second coil of relay.
Resistance R52 and resistance R2 are 1K ohm；Resistance R19 and resistance R7 are 20K ohm.
Ceramic condenser C5 and C6 are connected between the G poles and ground of model 2N7002K, the N-MOS pipe of N-MOS pipes, each
The capacitance of ceramic condenser is to be connected to diode D7, BAT+ and a N-MOS between 0.1uF, BAT+ and N-MOS pipes Q9 D poles
A diode D10 is connected between pipe Q1 D poles.
Control signal CTL-START and control signal DAT are all from MCU.
Described MCU uses SC8F2712 cake cores.
Described NMOS tube is 2N7002K type devices.
Resistance R19 is parallel with electric capacity C22.
Electric capacity C22 capacitance is 0.1uF.
Described accumulation power supply is the accumulation power supply based on super capacitor, and accumulation power supply includes 5 super capacitors of series connection,
The capacitance of each super capacitor is 350F.
CTL-START and DAT are normal control signal and exception control respectively；Normal control actively opens electric discharge for user
Switch, switching relay realizes electric discharge；Exception control refers to that one of following 5 kinds of situations occur：
1. clip terminal voltage is too low (being less than 11VDC)
2. clip terminal voltage is too high (being higher than 15VDC)
3. clip is reversed
4. clip is short-circuit
5. internal wiring temperature is too high；
Case above is detected by correlation detecting circuit.
Beneficial effect：
Relay drive circuit of the present utility model for portable power source, using 2 parallel drive modules drivings after
Electrical equipment, reliability is high, safe, in addition, and each drive module also has 2 N-MOS pipes, i.e., using Redundancy Design, cut
Time lag is small when changing, even if a switching device is damaged, still can be with normal work, thus reliability is high, can ensure automobile starting
The regular picture of power supply.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the relay drive circuit for portable power source；
Fig. 2 is the schematic diagram of the accumulator of portable power source.
Embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to practical new herein
Type, which is done, more comprehensively, meticulously to be described, but protection domain of the present utility model is not limited to specific embodiment.
Unless otherwise defined, all technical terms used hereinafter are generally understood that implication phase with those skilled in the art
Together.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to and limits this practicality newly
The protection domain of type.
Embodiment 1：
Fig. 1, a kind of relay drive circuit for portable power source, including relay and the first drive module；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；Resistance R52 the first termination control signal
CTL-START；Resistance R52 the second end is grounded through resistance R19；2 N-MOS pipes Q9 and Q13 G are extremely shorted to resistance R52
With R19 tie point；2 N-MOS pipes Q9 and Q13 S are extremely grounded；2 N-MOS pipes Q9 and Q13 D poles and accumulation power supply
The first coil of relay is connected between positive pole BAT+.
The described relay drive circuit for portable power source also includes the second drive module；Described relay is double
Input line ring relay, with first coil and the second coil, and shares a pair of output contacts；
The second described drive module includes the second control signal input circuit and 2 N-MOS pipes Q1 and Q2；
Second control signal input circuit includes the resistance R2 and R7 of series connection；Resistance R2 the first termination control signal DAT；
Resistance R2 the second end is grounded through resistance R7；2 N-MOS pipes Q1 and Q2 G are extremely shorted to resistance R2 and R7 tie point；2
Individual N-MOS pipes Q1 and Q2 S are extremely grounded；It is connected between 2 N-MOS pipes Q1 and Q3 D poles and the positive pole BAT+ of accumulation power supply
Second coil of relay.
Resistance R52 and resistance R2 are 1K ohm；Resistance R19 and resistance R7 are 20K ohm.
Ceramic condenser C5 and C6 are connected between the G poles and ground of model 2N7002K, the N-MOS pipe of N-MOS pipes, each
The capacitance of ceramic condenser is to be connected to diode D7, BAT+ and a N-MOS between 0.1uF, BAT+ and N-MOS pipes Q9 D poles
A diode D10 is connected between pipe Q1 D poles.
Described accumulation power supply is the accumulation power supply based on super capacitor, and accumulation power supply includes 5 super capacitors of series connection,
The capacitance of each super capacitor is 350F.
Such as Fig. 2, the energy-storage module of portable power source includes 5 super capacitors (C1, C2, C3, C4 and C7) of series connection；Each surpasses
The capacitance of level electric capacity is 350F；The energy-storage module using lithium ion battery is totally different from, it is safe using super capacitor,
The risk do not exploded, and service life is long；The effect of 4 sockets (J45, J11, J11, J18) in circuit is that overstriking is led
Electrical circuit；Because typical case's application of the power supply is to provide automobile starting electric current, electric current is big, and overstriking galvanic circle can effectively be protected
Device and circuit board.Each super capacitor is parallel with a voltage stabilizing branch road, and voltage stabilizing branch routing resistance and voltage-stabiliser tube are in series,
The resistance of resistance is 1 ohm, the model MMSZS223BT1 of voltage-stabiliser tube.
Claims (10)
1. a kind of relay drive circuit for portable power source, it is characterised in that including relay and the first drive module；
The first described drive module includes the first control signal input circuit and 2 N-MOS pipes Q9 and Q13；
First control signal input circuit includes the resistance R52 and R19 of series connection；Resistance R52 the first termination control signal CTL-
START；Resistance R52 the second end is grounded through resistance R19；2 N-MOS pipes Q9 and Q13 G are extremely shorted to resistance R52 and R19
Tie point；2 N-MOS pipes Q9 and Q13 S are extremely grounded；2 N-MOS pipes Q9 and Q13 D poles and the positive pole of accumulation power supply
The first coil of relay is connected between BAT+.
2. the relay drive circuit according to claim 1 for portable power source, it is characterised in that also driven including second
Dynamic model block；Described relay is dual input coil form relay, with first coil and the second coil, and shares a pair of output
Contact；
The second described drive module includes the second control signal input circuit and 2 N-MOS pipes Q1 and Q2；
Second control signal input circuit includes the resistance R2 and R7 of series connection；Resistance R2 the first termination control signal DAT；Resistance
R2 the second end is grounded through resistance R7；2 N-MOS pipes Q1 and Q2 G are extremely shorted to resistance R2 and R7 tie point；2 N-
Metal-oxide-semiconductor Q1 and Q2 S are extremely grounded；Relay is connected between 2 N-MOS pipes Q1 and Q3 D poles and the positive pole BAT+ of accumulation power supply
Second coil of device.
3. the relay drive circuit according to claim 2 for portable power source, it is characterised in that resistance R52 and electricity
It is 1K ohm to hinder R2.
4. the relay drive circuit according to claim 2 for portable power source, it is characterised in that resistance R19 and electricity
It is 20K ohm to hinder R7.
5. the relay drive circuit for portable power source according to claim 3 or 4, it is characterised in that described storage
Energy power supply is the accumulation power supply based on super capacitor, and accumulation power supply includes 5 super capacitors of series connection, each super capacitor
Capacitance is 350F.
6. the relay drive circuit according to claim 2 for portable power source, it is characterised in that control signal CTL-
START and control signal DAT are all from MCU.
7. the relay drive circuit according to claim 6 for portable power source, it is characterised in that described MCU is adopted
Use SC8F2712 cake cores.
8. the relay drive circuit according to claim 7 for portable power source, it is characterised in that described N-MOS
Manage as 2N7002K type devices.
9. the relay drive circuit according to claim 8 for portable power source, it is characterised in that resistance R19 is in parallel
There is electric capacity C22.
10. the relay drive circuit according to claim 9 for portable power source, it is characterised in that electric capacity C22 appearance
It is worth for 0.1uF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083234.6U CN206441663U (en) | 2017-01-22 | 2017-01-22 | A kind of relay drive circuit for portable power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083234.6U CN206441663U (en) | 2017-01-22 | 2017-01-22 | A kind of relay drive circuit for portable power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206441663U true CN206441663U (en) | 2017-08-25 |
Family
ID=59635123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083234.6U Active CN206441663U (en) | 2017-01-22 | 2017-01-22 | A kind of relay drive circuit for portable power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206441663U (en) |
-
2017
- 2017-01-22 CN CN201720083234.6U patent/CN206441663U/en active Active
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