CN207009368U - A kind of new resistance-capacitance depressurization and relay drive circuit - Google Patents
A kind of new resistance-capacitance depressurization and relay drive circuit Download PDFInfo
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- CN207009368U CN207009368U CN201720702443.4U CN201720702443U CN207009368U CN 207009368 U CN207009368 U CN 207009368U CN 201720702443 U CN201720702443 U CN 201720702443U CN 207009368 U CN207009368 U CN 207009368U
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Abstract
The utility model discloses a kind of new resistance-capacitance depressurization and relay drive circuit, including reduction voltage circuit, load mu balanced circuit and relay drive circuit；The reduction voltage circuit includes the 4th resistance R4, current-limiting resistance RF1 and the second electric capacity CX1；The load mu balanced circuit includes the first commutation diode D1, the first electrochemical capacitor EC1, the first electric capacity C1, voltage-regulator diode ZD1, load RX；The relay drive circuit includes the second commutation diode D2, the 3rd commutation diode D3, the first triode Q1, the second triode Q2, first resistor R1, second resistance R2,3rd resistor R3, the second electrochemical capacitor EC2, relay REL1.It is by the way that relay REL1 and load RX1 are connected in parallel, relay drive circuit works in the positive half cycle of alternating current, mu balanced circuit is loaded to work in alternating current negative half period, so that CBB the or X2 capacitances in resistance-capacitance depressurization power supply product accomplish minimum, the utility model has low cost, low-power consumption, the characteristics of stability is strong.
Description
Technical field：
The utility model belongs to relay drive circuit technical field, is specifically related to a kind of new resistance-capacitance depressurization and relay
Device drive circuit.
Background technology：
Main two kinds of resistance-capacitance depressurization at present：Full-wave rectification and halfwave rectifier.But there is floating ground situation, peace in full-wave rectification scheme
Full property is poor；And traditional halfwave rectifier resistance-capacitance depressurization and relay drive circuit can only use the power work that alternating current half cycle provides
Make, power supply service efficiency is low, and required capacitor's capacity is big, causes cost height.
Utility model content：
Therefore, the utility model proposes a kind of new resistance-capacitance depressurization and relay drive circuit, halfwave rectifier and energy are used
It can be worked using the positive-negative half-cycle of alternating current, and avoid floating ground situation, improved the service efficiency of power supply, reduce capacitor's capacity,
Cost is reduced, reduces stand-by power consumption.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：
A kind of new resistance-capacitance depressurization and relay drive circuit, including：
Reduction voltage circuit, load mu balanced circuit and relay drive circuit.
The reduction voltage circuit includes the 4th resistance R4, current-limiting resistance RF1 and the second electric capacity CX1, the second electric capacity CX1 with
The 4th resistance R4 is in parallel, the first end connection AC power U1 of the 4th resistance R4 live wire ACL, the 4th resistance
R4 the second end connects the first end of the current-limiting resistance RF1, the zero line ACN ground connection of the AC power U1.
The load mu balanced circuit includes the first commutation diode D1, the first electrochemical capacitor EC1, the first electric capacity C1, voltage stabilizing
Diode ZD1, load RX, the positive pole of the first commutation diode D1 connect the second end of the current-limiting resistance RF1, and described the
One commutation diode D1 negative pole connects the first end of the first electric capacity C1, the second end ground connection of the first electric capacity C1, institute
The positive pole for stating the first electrochemical capacitor EC1 connects the negative pole of the first commutation diode D1, and the first electrochemical capacitor EC1's is negative
Pole is grounded, and the negative pole of the voltage-regulator diode ZD1 connects the negative pole of the first commutation diode D1, the voltage-regulator diode
ZD1 plus earth, the first end of the load RX connect the negative pole of the first commutation diode D1, and the of the load RX
Two ends are grounded, and the negative pole of the voltage-regulator diode ZD1 is connected with first voltage.
The relay drive circuit include the second commutation diode D2, the 3rd commutation diode D3, the first triode Q1,
Second triode Q2, first resistor R1, second resistance R2,3rd resistor R3, the second electrochemical capacitor EC2, relay REL1, it is described
Second commutation diode D2 negative pole connects the second end of the current-limiting resistance RF1, the positive pole of the second commutation diode D2
The negative pole of the 3rd commutation diode D3 is connected, the positive pole of the 3rd commutation diode D3 connects the second electrochemical capacitor EC2
Negative pole, the plus earth of the second electrochemical capacitor EC2, the negative pole of the second electrochemical capacitor EC2 is connected with second voltage,
The coil of the relay REL1 is in parallel with the second electrochemical capacitor EC2, the emitter stage of the second triode Q2 with it is described
Second commutation diode D2 positive pole connection, the grounded collector of the second triode Q2, the base of the second triode Q2
Pole connection first resistor R1 first end, the second end of the first resistor R1 connect the colelctor electrode of the first triode Q1,
The emitter stage connection tertiary voltage of the first triode Q1, the of the base stage connection 3rd resistor R3 of the first triode Q1
One end, the second end ground connection of the 3rd resistor R3, the first end of the second resistance R2 connect the first triode Q1's
Base stage, the second end connection signal port CTRL of the second resistance R2.
As the preferred of above-mentioned technical proposal, the second electric capacity CX1 chooses CBB electric capacity or X2 electric capacity.
As the preferred of above-mentioned technical proposal, the first triode Q1 is PNP type triode, the second triode Q2
For NPN type triode.
As the preferred of above-mentioned technical proposal, the first voltage is+5V.
As the preferred of above-mentioned technical proposal, the second voltage is -24V.
As the preferred of above-mentioned technical proposal, the tertiary voltage is+5V.
The beneficial effects of the utility model are：, by the way that relay REL1 and load RX1 are connected in parallel, relay drives for it
Dynamic circuit works in the positive half cycle of alternating current, and load mu balanced circuit works in alternating current negative half period, so that resistance-capacitance depressurization power supply
The characteristics of CBB or X2 capacitances in product accomplish minimum, and the utility model has inexpensive, low-power consumption, and stability is strong.
Brief description of the drawings：
The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1 is a kind of new resistance-capacitance depressurization and relay drive circuit figure of the utility model one embodiment.
Embodiment：
As shown in figure 1, a kind of new resistance-capacitance depressurization of the present utility model and relay drive circuit, including：
Reduction voltage circuit, load mu balanced circuit and relay drive circuit.
The reduction voltage circuit includes the 4th resistance R4, current-limiting resistance RF1 and the second electric capacity CX1, the second electric capacity CX1 with
The 4th resistance R4 is in parallel, the first end connection AC power U1 of the 4th resistance R4 live wire ACL, the 4th resistance
R4 the second end connects the first end of the current-limiting resistance RF1, the zero line ACN ground connection of the AC power U1.Second electricity
Hold CX1 and choose CBB electric capacity or X2 electric capacity.
The load mu balanced circuit includes the first commutation diode D1, the first electrochemical capacitor EC1, the first electric capacity C1, voltage stabilizing
Diode ZD1, load RX, the positive pole of the first commutation diode D1 connect the second end of the current-limiting resistance RF1, and described the
One commutation diode D1 negative pole connects the first end of the first electric capacity C1, the second end ground connection of the first electric capacity C1, institute
The positive pole for stating the first electrochemical capacitor EC1 connects the negative pole of the first commutation diode D1, and the first electrochemical capacitor EC1's is negative
Pole is grounded, and the negative pole of the voltage-regulator diode ZD1 connects the negative pole of the first commutation diode D1, the voltage-regulator diode
ZD1 plus earth, the first end of the load RX connect the negative pole of the first commutation diode D1, and the of the load RX
Two ends are grounded, and the negative pole of the voltage-regulator diode ZD1 is connected with first voltage.The first voltage is+5V.
The relay drive circuit include the second commutation diode D2, the 3rd commutation diode D3, the first triode Q1,
Second triode Q2, first resistor R1, second resistance R2,3rd resistor R3, the second electrochemical capacitor EC2, relay REL1, it is described
Second commutation diode D2 negative pole connects the second end of the current-limiting resistance RF1, the positive pole of the second commutation diode D2
The negative pole of the 3rd commutation diode D3 is connected, the positive pole of the 3rd commutation diode D3 connects the second electrochemical capacitor EC2
Negative pole, the plus earth of the second electrochemical capacitor EC2, the negative pole of the second electrochemical capacitor EC2 is connected with second voltage,
The coil of the relay REL1 is in parallel with the second electrochemical capacitor EC2, the emitter stage of the second triode Q2 with it is described
Second commutation diode D2 positive pole connection, the grounded collector of the second triode Q2, the base of the second triode Q2
Pole connection first resistor R1 first end, the second end of the first resistor R1 connect the colelctor electrode of the first triode Q1,
The emitter stage connection tertiary voltage of the first triode Q1, the of the base stage connection 3rd resistor R3 of the first triode Q1
One end, the second end ground connection of the 3rd resistor R3, the first end of the second resistance R2 connect the first triode Q1's
Base stage, the second end connection signal port CTRL of the second resistance R2.The first triode Q1 is PNP type triode, institute
It is NPN type triode to state the second triode Q2.The second voltage is -24V.The tertiary voltage is+5V.
A kind of new resistance-capacitance depressurization and relay drive circuit described in the present embodiment, including reduction voltage circuit, load voltage stabilizing
Circuit and relay drive circuit；The reduction voltage circuit includes the 4th resistance R4, current-limiting resistance RF1 and the second electric capacity CX1；It is described
Loading mu balanced circuit includes the first commutation diode D1, the first electrochemical capacitor EC1, the first electric capacity C1, voltage-regulator diode ZD1, negative
Carry RX；The relay drive circuit includes the second commutation diode D2, the 3rd commutation diode D3, the first triode Q1, the
Two triode Q2, first resistor R1, second resistance R2,3rd resistor R3, the second electrochemical capacitor EC2, relay REL1；It passes through
Relay REL1 and load RX1 are connected in parallel, relay drive circuit works in the positive half cycle of alternating current, loads mu balanced circuit
Worked in alternating current negative half period, so that CBB the or X2 capacitances in resistance-capacitance depressurization power supply product accomplish minimum, this practicality is newly
The characteristics of type has inexpensive, low-power consumption, and stability is strong.
A kind of new resistance-capacitance depressurization of the present utility model and relay drive circuit concrete operating principle are as follows：
Reduction voltage circuit：Input AC electricity is through resistance-capacitance depressurization.
Load mu balanced circuit：Input AC electricity positive half-wave passes through reduction voltage circuit, the first commutation diode D1, voltage-regulator diode
ZD1, the first electrochemical capacitor EC1, there is provided+5V output voltages are for load RX1 work.
Relay drive circuit：The negative half-wave of input AC electricity is driven by reduction voltage circuit by the first commutation diode D2
Relay；When wherein the first triode Q1 base signals CTRL is GND, the first triode Q1 conductings, the second triode Q2 conductings,
Relay REL1 both ends are short-circuited, and relay disconnects；When first triode Q1 transistor base signals CTRL is+5V, the one or three
Pole pipe Q1 ends, and the second triode Q2 cut-offs, the second electrochemical capacitor EC2 electrochemical capacitors are filtered into relay REL1 and provide unlatching electricity
Pressure, relay adhesive；3rd commutation diode D3's act as the second triode Q2 conducting moments, and relay storage energy can not
Discharged by the second triode Q2, the second triode Q2 of protection is without damage.
This programme combines the advantages of all-wave and halfwave rectifier scheme, and the common ground wire of many devices, to PCB typesettings and EMC
Also than advantageous in terms of authentication test.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (6)
1. a kind of new resistance-capacitance depressurization and relay drive circuit, it is characterised in that including：
Reduction voltage circuit, load mu balanced circuit and relay drive circuit；
The reduction voltage circuit includes the 4th resistance R4, current-limiting resistance RF1 and the second electric capacity CX1, the second electric capacity CX1 with it is described
4th resistance R4 is in parallel, the first end connection AC power U1 of the 4th resistance R4 live wire ACL, the 4th resistance R4's
Second end connects the first end of the current-limiting resistance RF1, the zero line ACN ground connection of the AC power U1；
The load mu balanced circuit includes the first commutation diode D1, the first electrochemical capacitor EC1, the first electric capacity C1, the pole of voltage stabilizing two
Pipe ZD1, load RX, the first commutation diode D1 positive pole connect the second end of the current-limiting resistance RF1, and described first is whole
The negative pole for flowing diode D1 connects the first end of the first electric capacity C1, the second end ground connection of the first electric capacity C1, and described the
One electrochemical capacitor EC1 positive pole connects the negative pole of the first commutation diode D1, and the negative pole of the first electrochemical capacitor EC1 connects
Ground, the negative pole of the voltage-regulator diode ZD1 connect the negative pole of the first commutation diode D1, the voltage-regulator diode ZD1's
Plus earth, the first end of the load RX connect the negative pole of the first commutation diode D1, the second end of the load RX
Ground connection, the negative pole of the voltage-regulator diode ZD1 are connected with first voltage；
The relay drive circuit includes the second commutation diode D2, the 3rd commutation diode D3, the first triode Q1, second
Triode Q2, first resistor R1, second resistance R2,3rd resistor R3, the second electrochemical capacitor EC2, relay REL1, described second
Commutation diode D2 negative pole connects the second end of the current-limiting resistance RF1, the positive pole connection of the second commutation diode D2
The negative pole of the 3rd commutation diode D3, the positive pole of the 3rd commutation diode D3 connect the negative of the second electrochemical capacitor EC2
Pole, the plus earth of the second electrochemical capacitor EC2, the negative pole of the second electrochemical capacitor EC2 is connected with second voltage, described
Relay REL1 coil is in parallel with the second electrochemical capacitor EC2, the emitter stage and described second of the second triode Q2
Commutation diode D2 positive pole connection, the grounded collector of the second triode Q2, the base stage of the second triode Q2 connect
First resistor R1 first end is connect, the second end of the first resistor R1 connects the colelctor electrode of the first triode Q1, described
First triode Q1 emitter stage connection tertiary voltage, the first of the base stage connection 3rd resistor R3 of the first triode Q1
End, the second end ground connection of the 3rd resistor R3, the first end of the second resistance R2 connect the base of the first triode Q1
Pole, the second end connection signal port CTRL of the second resistance R2.
2. a kind of new resistance-capacitance depressurization according to claim 1 and relay drive circuit, it is characterised in that：Described second
Electric capacity CX1 chooses CBB electric capacity or X2 electric capacity.
3. a kind of new resistance-capacitance depressurization according to claim 1 and relay drive circuit, it is characterised in that：Described first
Triode Q1 is PNP type triode, and the second triode Q2 is NPN type triode.
4. a kind of new resistance-capacitance depressurization according to claim 1 and relay drive circuit, it is characterised in that：Described first
Voltage is+5V.
5. a kind of new resistance-capacitance depressurization according to claim 1 and relay drive circuit, it is characterised in that：Described second
Voltage is -24V.
6. a kind of new resistance-capacitance depressurization according to claim 1 and relay drive circuit, it is characterised in that：Described 3rd
Voltage is+5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702443.4U CN207009368U (en) | 2017-06-16 | 2017-06-16 | A kind of new resistance-capacitance depressurization and relay drive circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702443.4U CN207009368U (en) | 2017-06-16 | 2017-06-16 | A kind of new resistance-capacitance depressurization and relay drive circuit |
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| CN207009368U true CN207009368U (en) | 2018-02-13 |
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| CN201720702443.4U Expired - Fee Related CN207009368U (en) | 2017-06-16 | 2017-06-16 | A kind of new resistance-capacitance depressurization and relay drive circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872695A (en) * | 2018-07-04 | 2018-11-23 | 广东省测试分析研究所（中国广州分析测试中心） | Two-phase zero passage signal detection circuit and signal transmission through fiber system |
| CN109406989A (en) * | 2018-11-12 | 2019-03-01 | 深圳和而泰小家电智能科技有限公司 | A kind of load circuit detection method, load detecting circuit and electronic equipment |
-
2017
- 2017-06-16 CN CN201720702443.4U patent/CN207009368U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872695A (en) * | 2018-07-04 | 2018-11-23 | 广东省测试分析研究所（中国广州分析测试中心） | Two-phase zero passage signal detection circuit and signal transmission through fiber system |
| CN108872695B (en) * | 2018-07-04 | 2020-08-14 | 广东省测试分析研究所（中国广州分析测试中心） | Two-phase zero-crossing signal detection circuit and optical fiber signal transmission system |
| CN109406989A (en) * | 2018-11-12 | 2019-03-01 | 深圳和而泰小家电智能科技有限公司 | A kind of load circuit detection method, load detecting circuit and electronic equipment |
| CN109406989B (en) * | 2018-11-12 | 2024-04-16 | 深圳和而泰小家电智能科技有限公司 | Load loop detection method, load detection circuit and electronic equipment |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20180616 |