CN203423665U - Electronic relay - Google Patents
Electronic relay Download PDFInfo
- Publication number
- CN203423665U CN203423665U CN201320514534.7U CN201320514534U CN203423665U CN 203423665 U CN203423665 U CN 203423665U CN 201320514534 U CN201320514534 U CN 201320514534U CN 203423665 U CN203423665 U CN 203423665U
- Authority
- CN
- China
- Prior art keywords
- triode
- circuit
- resistance
- connects
- collector electrode
- 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
Links
- 230000005669 field effect Effects 0.000 claims description 25
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 11
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 4
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 230000004224 protection Effects 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000007306 functionalization reaction Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model discloses an electronic relay. The electronic relay comprises a control input device, an output circuit, an integration circuit, a main control circuit, a driving circuit and a high-power switching tube, wherein the output end of the control input device is connected with the main control circuit; the input circuit is connected with a power supply and the main control circuit; a first control end of the main control circuit is connected with a controlled end of the high-power switching tube through the driving circuit; a second control end is connected with the integration circuit; the input end of the high-power switching tube is connected with the power supply, and the output end is connected with a load; and the high-power switching tube is an NMOS (N-channel metal oxide semiconductor) transistor. According to the utility model, the NMOS transistor is adopted to connect the load below the NMOS transistor. Voltage is outputted to the driving circuit after being boosted by the integration circuit, thereby enabling the driving circuit to have high enough voltage and current to drive the NMOS transistor to operate. The main control circuit controls the operating states of the integration circuit and the driving circuit, thereby realizing control for the NMOS transistor indirectly. The electronic relay disclosed by the utility model is applied to automobile and diesel engine circuit control.
Description
Technical field
The utility model relates to circuit control appliance, especially relates to electronic relay and the control method thereof of a kind of use on automobile.
Background technology
The birth of automobile has had the history of last 100 years, and relay, as legacy device of car electrics, plays a part indispensable in the use procedure of automobile.But, facts have proved for many years, traditional mechanical relay has following significant shortcoming: first, function singleness, can only play the switching function of power supply, can not realize intellectuality, integrated and automation, also just can not guarantee according to the principle of car electrics or relevant criterion, to carry out work completely, therefore to vehicle mounted electrical apparatus, cause a lot of undue harms.Secondly, the relay overwhelming majority that automobile uses at present is exactly all traditional mechanical relay, owing to being often subject to the impact of high-voltage arc, between the contact of mechanical relay and conducting strip often because ablation produces the phenomenon of adhesion, directly cause burning of vehicle mounted electrical apparatus coil or circuit, bring inconvenience to the use of automobile, this is to fail at present to obtain the basic difficult problem solving both at home and abroad always.The 3rd, current vehicle mounted electrical apparatus lacks safety precautions, can not effectively prevent the generation of dangerous phenomenon.Because the problems referred to above are effectively solved for a long time always, bring very large loss not only to vehicle mounted electrical apparatus manufacturer, also seriously affect the normal use of vehicle simultaneously.
The basic principle of electricity consumption is to control (as relay) upper, electric appliance load under, relay is serially connected between positive source and load.Generally be controlled at and use P-channel field-effect transistor (PEFT) pipe as switching tube.But owing to being subject to the impact of the factors such as P-channel field-effect transistor (PEFT) Manifold technology index and price, limited use channel and the scope of relay.And N channel field-effect pipe has the advantage that the P-channel field-effect transistor (PEFT) pipes such as wide accommodation, power be large do not have.But N channel field-effect pipe is realized and to be controlled at as switching tube, electric appliance load under, stabilized driving voltage and the drive current higher than vehicle carried power voltage that need to be difficult to realization.
State Intellectual Property Office of the People's Republic of China discloses the patent documentation that publication No. is CN102332900A on 01 25th, 2012, title is a kind of solid state relay, and it comprises a photovoltaic diode array and one or two field-effect transistor; Also comprise a charging circuit being formed by phototransistor, resistance, the emitter of phototransistor connects the grid of effect transistor, collector electrode is connected on the first end of photovoltaic diode array, and resistance is connected between the source electrode of field-effect transistor and the second end of photovoltaic diode array; One by triode, N slot field-effect transistor and two acceleration leadage circuits that resistance forms, triode connects the grid of field-effect transistor through a resistance, collector electrode is connected on the second end of photovoltaic diode array, base stage connects the first end of photovoltaic diode array, the drain electrode of N slot field-effect transistor connects the grid of field-effect transistor through a resistance, source electrode and substrate are connected on the source electrode of field-effect transistor, and grid is connected on the second end of photovoltaic diode array.This scheme still cannot be used N channel field-effect pipe to realize and be controlled at the layout under loading on as switching tube.
Summary of the invention
The utility model is mainly to solve the existing N channel field-effect pipe that can not use of prior art as switching tube, the technical problem of the layout under realization is controlled at and loads on, especially the application of the high-power N channel field-effect pipe under pulse-width-modulated mode, provides a kind of and can export the electronic relay that high voltage drives the high-power N channel field-effect pipe of connection and load top.
The utility model is mainly solved by following technical proposals for above-mentioned technical problem: a kind of electronic relay, comprises control inputs device, input circuit, integrated circuit, governor circuit, drive circuit and high-power switch tube; The output of described control inputs device connects governor circuit; The input of described input circuit connects power supply, and output connects governor circuit; The first control end of described governor circuit connects the controlled terminal of high-power switch tube by drive circuit; The second control end of governor circuit connects integrated circuit; The input of described high-power switch tube connects power supply, and output connects load; Described integrated circuit comprises booster circuit, shaping circuit and voltage stabilizing circuit, and the input of described booster circuit connects power supply, and output is connected to the feeder ear of drive circuit by shaping circuit and voltage stabilizing circuit; Described high-power switch tube is N channel field-effect pipe.
This programme adopts N channel field-effect pipe, and load is connected to N channel field-effect pipe below.Integrated circuit outputs to drive circuit after voltage is promoted, and makes drive circuit have enough large voltage and current and carrys out the work of driving N channel field-effect pipe.Input circuit provides power supply for governor circuit, and the square wave of governor circuit under modulating by output pulse width controlled the operating state of integrated circuit and drive circuit, thereby indirectly realizes the control to high-power switch tube.Input control device, for to governor circuit input presumptive instruction, makes it according to program and the content set, carry out work.Relay can connect to relevant transducer, can also carry out interconnection with vehicle-mounted other electrical equipment or control system, is used in conjunction with alternately.By the monitoring of governor circuit, can realize the functions such as relevant automatic control and monitoring.
As preferably, described integrated circuit comprises inductance L 1, capacitor C 9, capacitor C 10, triode Q1, triode Q2, triode Q3, resistance R 2, resistance R 4, resistance R 5, resistance R 6, resistance R 7, diode D1 and voltage stabilizing didoe D2; One end of inductance L 1 connects power supply, the collector electrode of other end connecting triode Q1; The base stage of triode Q1 connects the second control end of governor circuit, grounded emitter as A port; The collector electrode of the anodal connecting triode Q1 of diode D1, the collector electrode of negative pole connecting triode Q3; One end of capacitor C 10 connects power supply, the collector electrode of other end connecting triode Q3; Resistance R 7 is connected across between the collector electrode and base stage of triode Q3; The emitter of the base stage connecting triode Q2 of triode Q3, the emitter of triode Q3 connects the feeder ear of drive circuit; The collector electrode of one end connecting triode Q2 of resistance R 4, one end of other end contact resistance R5, the other end ground connection of resistance R 5; Resistance R 6 is connected across between the emitter and base stage of triode Q2; The base stage of the negative pole connecting triode Q2 of voltage stabilizing didoe D2, anodal connection load; The emitter of one end connecting triode Q3 of capacitor C 9, the other end connects load.
Booster circuit is mainly rising vehicle carried power voltage, for drive circuit provides suitable voltage, its mainly comprise inductance L 1, with triode Q1 and sustained diode 1.
Shaping circuit is mainly that the voltage to raising carries out filter shape, reduces the voltage ripple that offers drive circuit, obtains stable voltage VCC, and it mainly comprises triode Q2 and capacitor C 10.
Voltage stabilizing circuit is mainly that the voltage of lifting, shaping is carried out to clamp, and the voltage VCC that offers drive circuit is stabilized within the scope of one, and it mainly comprises triode Q3 and voltage-stabiliser tube D2.
As preferably, the tie point of described resistance R 4 and resistance R 5 is B port, and governor circuit comprises feedback end, and B port connects feedback end.
Governor circuit, according to the output state of B port judgement integrated circuit, is controlled thereby realize more accurately.
As preferably, described drive circuit comprises resistance R 8, resistance R 9, resistance R 10, resistance R 11, triode Q4, triode Q5, triode Q6, triode Q7 and diode D3; The emitter of described triode Q5 is as the feeder ear of drive circuit, the collector electrode of the base stage connecting triode Q4 of triode Q5, triode Q5 one end of collector electrode contact resistance R10, the collector electrode of the other end connecting triode Q6 of resistance R 10, the grounded emitter of triode Q6, base stage connects governor circuit; The base stage of triode Q4 connects governor circuit, and emitter is by resistance R 9 ground connection; Resistance R 8 is connected across between the base stage and emitter of triode Q5; The collector electrode of the anodal connecting triode Q5 of diode D3, negative pole connects the controlled terminal of high-power switch tube; The base stage of triode Q7 connects the positive pole of diode D3, and emitter connects the negative pole of diode D3, and collector electrode connects the output of high-power switch tube; Resistance R 11 is connected across between the base stage and collector electrode of triode Q7; The input of high-power switch tube connects power supply, and output connects load.
Drive circuit comprises push-pull circuit and the local breaking circuit that accelerates.
Push-pull circuit is mainly to improve circuit carrying load ability and switching speed, drives fast the switch of mos pipe, mainly triode Q4, Q5, Q6, consists of.
The local breaking circuit that accelerates is mainly when mos pipe turn-offs, accelerates to turn-off, and shortens the turn-off time, reduces the loss of mos pipe, mainly Q7 and D3, consists of.
A control method that is applicable to aforesaid electronic relay, comprises the steps:
One, supply voltage VI is divided into three intervals, there are a upper voltage limit and lower voltage limit in each interval;
Two, detect supply voltage, judgement in-scope;
Three,, according to formula don=(VCC+Vd-VI)/(VCC+Vd), to VI value upper voltage limit and lower voltage limit respectively, calculate minimum duty ratio don
minwith maximum duty cycle don
max;
Four; Detect the level of B port, if low level, output to the duty ratio don=((don of the next square wave of A port
min+ don
max)/2+ don
min)/2; If B port is high level, the duty ratio that outputs to the next square wave of A port is don=((don
min+ don
max)/2+ don
max)/2;
VCC is the voltage that integrated circuit outputs to the feeder ear of drive circuit, and don is the duty ratio that governor circuit outputs to the square wave of A port, and Vd is diode drop.
First is interval for being more than or equal to 10V to being less than 16V, and between Second Region, for being more than or equal to 16V to being less than 22V, the 3rd is interval for being more than or equal to 22V to being less than or equal to 28V, if supply voltage detected not within the scope of this, quits work and report to the police.
After power supply works long hours, output voltage can change.Main control chip, according to the vehicle carried power voltage detecting, is given A port output pulse square wave, and booster circuit, according to the signal boosted voltage VCC of A port, when VCC voltage surpasses after the value of voltage-stabiliser tube, makes B port output low level, and B feeds back to main control chip again.
Wherein the duty cycle square wave of A port is determined by two factors, and one is from the vehicle power signal detecting, and another is the signal of coming by B port feedback.By the signal that comprehensively decides A port of these two signals, thereby obtain stable VCC voltage.
This relay application pulse width modulating technology; so just make that vehicle mounted electrical apparatus obtains more rationally, more energy-conservation power supply; therefore vehicle-mounted load can realize the use that regulates or control; equilibrium operating between protection vehicle mounted electric loading and a plurality of load; the service time that reduces load, increase the service life and strengthen result of use.
This programme has following characteristics:
1. contactless relay: described contactless relay be exactly by field effect transistor (metal-oxide-semiconductor) under the design principle of this patent and circuit design are supported, replace traditional mechanical contact relay system, realized electronics relay completely.Therefore the problems such as the contact adhesion of traditional magnetic switch and ablation have also just been stopped.
2. functionalization: described functionalization is exactly that this relay is while having monitoring, access, control and the intelligent functions such as safeguard protection.These functions are set in advance in main control chip and governor circuit, according to preset program, from trend drive circuit, send execution instruction, thereby realize automation and intelligentized control with function.
Monitoring function: main control chip is exactly the signal of passing back by related sensor, the differentiation of being correlated with according to the requirement of setting or program, then sends corresponding work order to drive circuit, to complete relevant function.As the situations such as the electric current of vehicle mounted electrical apparatus and other load, voltage, rotating speed, temperature, movement are monitored.
Control function: in main control chip, preset program or requirement exactly, make relay interior perhaps program work according to the rules, for example, while controlling, temperature control etc.As controlled, can guarantee operating time of vehicle mounted electrical apparatus or interval time that vehicle mounted electrical apparatus works according to the rules or under the condition of standard.
Defencive function: be exactly that interior perhaps requirement theing need protection set in advance in main control chip, make it to become the protection of automatic realization to vehicle mounted electrical apparatus.For example, to controls such as temperature, speed, power, voltage, electric currents, protection load can be worked safely and effectively, can play protective effect to greatest extent.To avoid causing undue harm to vehicle mounted electrical apparatus.
Access facility: present technique has record and the function that stores and extract data.When the data of a certain function need to record and store, this relay can complete automatically.And by reader, read the data that record and store.
3. automation: be exactly under the support of the art of this patent, relay correlation function has been realized automation substantially: monitoring automation, storage automation, safeguard protection automation, self-protection automation.For example, to water temperature, the monitoring of oil temperature equitemperature and protection; To the control of electric current, voltage and protection etc.
4. intellectuality: be exactly under the support of the art of this patent, relay correlation function has been realized intellectuality substantially.Only rely on the technology of relay self just can realize intelligent operation.For example, particularly, in function aspects such as monitoring and protections, can realize automatic decision, automatically send dependent instruction.
5. can carry out interconnection with vehicle-mounted other electrical equipment or control system, be used in conjunction with alternately.
The beneficial effect that the utility model brings is; use high-power N channel field-effect pipe to realize the layout being controlled under loading on; use channel and the scope of application of relay have greatly been widened; adopt pulse width modulating technology to make that vehicle mounted electrical apparatus obtains more rationally, more energy-conservation power supply simultaneously; vehicle-mounted load can realize the use that regulates or control; equilibrium operating between protection vehicle mounted electric loading and a plurality of load, extends load useful life and strengthening result of use.
Accompanying drawing explanation
Fig. 1 is a kind of circuit block diagram of the present utility model;
Fig. 2 is a kind of integrated circuit schematic diagram of the present utility model;
Fig. 3 is a kind of driving circuit principle figure of the present utility model;
In figure: 1, input circuit, 2, integrated circuit, 3, governor circuit, 4, drive circuit, 5, high-power switch tube, 6, power supply, 7, load, 8, input control device.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of electronic relay of the present embodiment, as shown in Figure 1, comprises input circuit 1, integrated circuit 2, governor circuit 3, drive circuit 4, high-power switch tube 5 and input control device 8.The input of input circuit 1 connects power supply 6, and output connects governor circuit 3; The first control end of governor circuit 3 connects the controlled terminal of high-power switch tube 5 by drive circuit 4; The second control end of governor circuit 3 connects integrated circuit 2; The input of high-power switch tube 5 connects power supply 6, and output connects load 7; Integrated circuit 2 comprises booster circuit, shaping circuit and voltage stabilizing circuit, and the input of booster circuit connects power supply 6, and output is connected to the feeder ear of drive circuit 4 by shaping circuit and voltage stabilizing circuit; High-power switch tube 5 is N channel field-effect pipe.Input control device 8 is connected with governor circuit 3.
This programme is applied on automobile, so power supply 6 is vehicle power.
Drive circuit two ends connect vehicle power and corresponding load.Input circuit is the power supply through adjusting, to meet the required power supply of governor circuit.Integrated circuit is mainly to provide suitable power source for drive circuit; and provide the effect of stable and protective circuit simultaneously; its upper end is connected in relay income; in often, there is electricity condition; when governor circuit sends after work order to it; just carry out circuit integrated, for drive circuit provides stable and safe power supply.Input control device sends original work order to governor circuit and main control chip, and activates input circuit and integrated circuit is started working, and for governor circuit and drive circuit provide suitable circuit and power supply, guarantees the normal operation of governor circuit and drive circuit.Then by governor circuit, to drive circuit, send work order, all related requests that drive circuit sends according to governor circuit or the switching of driven by program field effect transistor, realize the switching function of every power supply and realize various functions by cutting off or connect main power source.Input control device is exactly the most original command switch, comprises igniting, connection and sensor input control device.
As shown in Figure 2, integrated circuit comprises inductance L 1, capacitor C 9, capacitor C 10, triode Q1, triode Q2, triode Q3, resistance R 2, resistance R 4, resistance R 5, resistance R 6, resistance R 7, diode D1 and voltage stabilizing didoe D2; One end of inductance L 1 connects power supply, the collector electrode of other end connecting triode Q1; The base stage of triode Q1 connects the second control end of governor circuit, grounded emitter as A port; The collector electrode of the anodal connecting triode Q1 of diode D1, the collector electrode of negative pole connecting triode Q3; One end of capacitor C 10 connects power supply, the collector electrode of other end connecting triode Q3; Resistance R 7 is connected across between the collector electrode and base stage of triode Q3; The emitter of the base stage connecting triode Q2 of triode Q3, the emitter of triode Q3 connects the feeder ear of drive circuit; The collector electrode of one end connecting triode Q2 of resistance R 4, one end of other end contact resistance R5, the other end ground connection of resistance R 5; Resistance R 6 is connected across between the emitter and base stage of triode Q2; The base stage of the negative pole connecting triode Q2 of voltage stabilizing didoe D2, anodal connection load; The emitter of one end connecting triode Q3 of capacitor C 9, the other end connects load.The tie point of resistance R 4 and resistance R 5 is B port, and governor circuit comprises feedback end, and B port connects feedback end.
Integrated circuit comprises booster circuit, shaping circuit, voltage stabilizing circuit.Booster circuit is mainly rising vehicle carried power voltage, for drive circuit provides suitable voltage.Shaping circuit is mainly that the voltage to raising carries out filter shape, reduces the voltage ripple that offers drive circuit, obtains stable voltage VCC.Voltage stabilizing circuit is mainly that the voltage of lifting, shaping is carried out to clamp, and the voltage VCC that offers drive circuit is stabilized within the scope of one.
As shown in Figure 3, drive circuit comprises resistance R 8, resistance R 9, resistance R 10, resistance R 11, triode Q4, triode Q5, triode Q6, triode Q7 and diode D3; The emitter of described triode Q5 is as the feeder ear of drive circuit, the collector electrode of the base stage connecting triode Q4 of triode Q5, triode Q5 one end of collector electrode contact resistance R10, the collector electrode of the other end connecting triode Q6 of resistance R 10, the grounded emitter of triode Q6, base stage connects governor circuit; The base stage of triode Q4 connects governor circuit, and emitter is by resistance R 9 ground connection; Resistance R 8 is connected across between the base stage and emitter of triode Q5; The collector electrode of the anodal connecting triode Q5 of diode D3, negative pole connects the controlled terminal of high-power switch tube; The base stage of triode Q7 connects the positive pole of diode D3, and emitter connects the negative pole of diode D3, and collector electrode connects the output of high-power switch tube; Resistance R 11 is connected across between the base stage and collector electrode of triode Q7; The input of high-power switch tube connects power supply, and output connects load.
Drive circuit comprises push-pull circuit and the local breaking circuit that accelerates.Push-pull circuit is mainly to improve circuit carrying load ability and switching speed, drives fast the switch of mos pipe.The local breaking circuit that accelerates is mainly when mos pipe turn-offs, accelerates to turn-off, and shortens the turn-off time, reduces the loss of mos pipe.
Main control chip is according to the vehicle carried power voltage detecting, give PortA port (PortA) output pulse square wave, booster circuit is according to the signal boosted voltage VCC of A port, when VCC voltage surpasses after the value of voltage-stabiliser tube, make B port (PortB) output low level, PortB feeds back to main control chip again.
Wherein the duty cycle square wave of A port is determined by two factors, and one is from the vehicle power signal detecting, and another is the signal of coming by B port feedback.By the signal that comprehensively decides A port of these two signals, thereby obtain stable VCC voltage.
According to the vehicle carried power voltage VI detecting, VI is divided into three sections, when VI is 10 ~ 16V, be first paragraph, when VI is 16 ~ 22V, be second segment, when VI is 22 to 28V, be the 3rd section.During steady operation, each switch periods of triode, the conduction period increase minimizing that equals blocking interval inductive current of inductive current obtains.
After arranging, the * (1-don) of VI*don/ (f*L)=(VCC+Vd-VI)/(f*L) has
don=(VCC+Vd-VI)/(VCC+Vd)
Wherein VI is vehicle carried power voltage, and VCC is the supply voltage after raising, and don is A port duty cycle square wave, and f is switching frequency, and Vd is diode drop, and L is inductance value.
According to computing formula, obtain minimum duty ratio don
minwith maximum duty cycle don
max.The duty cycle square wave of A port input is (don
min+ don
max)/2, the signal that comprehensive B port feedback is come.
When being low level, A port square wave duty be current duty ratio and minimum duty cycle and half as next duty ratio,
don=（(don
min+don
max)/2+?don
min）/2
When being high level, A port duty cycle square wave be current duty ratio and maximum duty cycle and half as next duty ratio,
don=（(don
min+don
max)/2+?don
max）/2
Constantly according to the B port signal detecting and vehicle power signal, adjust the duty ratio of A port square wave successively, thereby obtain a dynamic equilibrium, make VCC reach stable.
It is required that the present embodiment can be applicable to all kinds of relays of automobile, as all relay parts that need such as automobile starter, eddy current retarder, radiator fan, ABS systems.
Although more used the terms such as integrated circuit, high-power switch tube herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (4)
1. an electronic relay, is characterized in that, comprises control inputs device, input circuit, integrated circuit, governor circuit, drive circuit and high-power switch tube; The output of described control inputs device connects governor circuit; The input of described input circuit connects power supply, and output connects governor circuit; The first control end of described governor circuit connects the controlled terminal of high-power switch tube by drive circuit; The second control end of governor circuit connects integrated circuit; The input of described high-power switch tube connects power supply, and output connects load; Described integrated circuit comprises booster circuit, shaping circuit and voltage stabilizing circuit, and the input of described booster circuit connects power supply, and output is connected to the feeder ear of drive circuit by shaping circuit and voltage stabilizing circuit; Described high-power switch tube is N channel field-effect pipe.
2. electronic relay according to claim 1, it is characterized in that, described integrated circuit comprises inductance L 1, capacitor C 9, capacitor C 10, triode Q1, triode Q2, triode Q3, resistance R 2, resistance R 4, resistance R 5, resistance R 6, resistance R 7, diode D1 and voltage stabilizing didoe D2; One end of inductance L 1 connects power supply, the collector electrode of other end connecting triode Q1; The base stage of triode Q1 connects the second control end of governor circuit, grounded emitter as A port; The collector electrode of the anodal connecting triode Q1 of diode D1, the collector electrode of negative pole connecting triode Q3; One end of capacitor C 10 connects power supply, the collector electrode of other end connecting triode Q3; Resistance R 7 is connected across between the collector electrode and base stage of triode Q3; The emitter of the base stage connecting triode Q2 of triode Q3, the emitter of triode Q3 connects the feeder ear of drive circuit; The collector electrode of one end connecting triode Q2 of resistance R 4, one end of other end contact resistance R5, the other end ground connection of resistance R 5; Resistance R 6 is connected across between the emitter and base stage of triode Q2; The base stage of the negative pole connecting triode Q2 of voltage stabilizing didoe D2, anodal connection load; The emitter of one end connecting triode Q3 of capacitor C 9, the other end connects load.
3. electronic relay according to claim 2, is characterized in that, the tie point of described resistance R 4 and resistance R 5 is B port, and governor circuit comprises feedback end, and B port connects feedback end.
4. according to the electronic relay described in claim 1 or 2 or 3, it is characterized in that, described drive circuit comprises resistance R 8, resistance R 9, resistance R 10, resistance R 11, triode Q4, triode Q5, triode Q6, triode Q7 and diode D3; The emitter of described triode Q5 is as the feeder ear of drive circuit, the collector electrode of the base stage connecting triode Q4 of triode Q5, triode Q5 one end of collector electrode contact resistance R10, the collector electrode of the other end connecting triode Q6 of resistance R 10, the grounded emitter of triode Q6, base stage connects governor circuit; The base stage of triode Q4 connects governor circuit, and emitter is by resistance R 9 ground connection; Resistance R 8 is connected across between the base stage and emitter of triode Q5; The collector electrode of the anodal connecting triode Q5 of diode D3, negative pole connects the controlled terminal of high-power switch tube; The base stage of triode Q7 connects the positive pole of diode D3, and emitter connects the negative pole of diode D3, and collector electrode connects the output of high-power switch tube; Resistance R 11 is connected across between the base stage and collector electrode of triode Q7; The input of high-power switch tube connects power supply, and output connects load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514534.7U CN203423665U (en) | 2013-08-22 | 2013-08-22 | Electronic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514534.7U CN203423665U (en) | 2013-08-22 | 2013-08-22 | Electronic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423665U true CN203423665U (en) | 2014-02-05 |
Family
ID=50022754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320514534.7U Expired - Fee Related CN203423665U (en) | 2013-08-22 | 2013-08-22 | Electronic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423665U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490759A (en) * | 2013-08-22 | 2014-01-01 | 杭州汉风电气有限公司 | Electronic relay and control method thereof |
| TWI578363B (en) * | 2015-11-13 | 2017-04-11 | 環旭電子股份有限公司 | Electronic relay for starter motor |
| CN109406742A (en) * | 2018-11-12 | 2019-03-01 | 上海仪电科学仪器股份有限公司 | Magnetic force power switch and water quality detection equipment under pressure-resistant water proof equipment environment |
| CN113093608A (en) * | 2021-03-31 | 2021-07-09 | 东风商用车有限公司 | Microelectronic relay and whole vehicle control circuit |
-
2013
- 2013-08-22 CN CN201320514534.7U patent/CN203423665U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490759A (en) * | 2013-08-22 | 2014-01-01 | 杭州汉风电气有限公司 | Electronic relay and control method thereof |
| CN103490759B (en) * | 2013-08-22 | 2016-05-04 | 杭州汉风电气有限公司 | Electronic relay and control method thereof |
| TWI578363B (en) * | 2015-11-13 | 2017-04-11 | 環旭電子股份有限公司 | Electronic relay for starter motor |
| CN109406742A (en) * | 2018-11-12 | 2019-03-01 | 上海仪电科学仪器股份有限公司 | Magnetic force power switch and water quality detection equipment under pressure-resistant water proof equipment environment |
| CN113093608A (en) * | 2021-03-31 | 2021-07-09 | 东风商用车有限公司 | Microelectronic relay and whole vehicle control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107026638B (en) | A kind of IGBT driving device and driving method | |
| CN205725692U (en) | For driving the gate driver circuit of power switch | |
| CN109510176B (en) | Intelligent power module driving protection circuit | |
| CN203423665U (en) | Electronic relay | |
| CN103857083B (en) | A kind of IGBT drive unit for electromagnetic heating system | |
| CN103490759B (en) | Electronic relay and control method thereof | |
| CN104617933A (en) | Circuit to reduce power dissipation of power stage and a method thereof | |
| CN203504407U (en) | Igbt drive circuit and electric pressure cooker | |
| Zhang et al. | Review of IGBT Intelligent Gate Drive and Protection Strategies | |
| CN202772560U (en) | IGBT overcurrent protection circuit and inductive load control circuit | |
| CN103152928A (en) | Load overvoltage protection circuit and control method thereof | |
| CN202330630U (en) | Detecting circuit for current and working condition of MOS (Metal Oxide Semiconductor) tube | |
| CN203027519U (en) | IGBT (Insulated Gate Bipolar Transistor) driving device for electromagnetic heating system | |
| CN202633913U (en) | Fork lock protection circuit based on insulated gate bipolar transistor (IGBT) half bridge gate drive | |
| CN105529679B (en) | IGBT protection of pipe method, protection circuit and the power module using the protection circuit | |
| CN209964030U (en) | Driving circuit and system based on field effect transistor | |
| CN202806629U (en) | High-side driving circuit | |
| CN101969269B (en) | Analog storage battery direct-current power supply | |
| CN112769103B (en) | Transient supporting protection system for super capacitor | |
| CN216598976U (en) | Short-circuit protection device of intelligent power module, frequency converter and servo system | |
| CN201928186U (en) | Sliding frequency soft startup circuit applied to electromagnetic induction heating power supply | |
| CN214544262U (en) | Pulse width duration monitoring circuit and heating device | |
| CN203457038U (en) | IGBT driving optical coupler protection circuit | |
| CN210578336U (en) | Motor driving system | |
| CN203813714U (en) | Motor driving device and frequency-conversion household electrical appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20210822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |