CN205478063U - A electronic type current limiting relay for opening starter stops - Google Patents
A electronic type current limiting relay for opening starter stops Download PDFInfo
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- CN205478063U CN205478063U CN201620186661.2U CN201620186661U CN205478063U CN 205478063 U CN205478063 U CN 205478063U CN 201620186661 U CN201620186661 U CN 201620186661U CN 205478063 U CN205478063 U CN 205478063U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model relates to an electronic type current limiting relay for opening starter stops belongs to automobile starter corollary equipment technical field. It comprises delay circuit, the drive circuit that steps up, MOS power tube circuit and current -limiting resistor, and its characteristics are: electric relay body comprises delay circuit, the drive circuit that steps up, MOS power tube circuit and current -limiting resistor, between drain electrode of the field effect transistor of MOS power tube circuit and source electrode and met current -limiting resistor, electric relay body concatenates in the starter circuit, saves traditional circuit and some fire end and the wire that connects. Field effect transistor replaces relay contact points control current -limiting resistor's joining and withdraws from long service life. Become three line connections by the four -wire, simplified circuit structure, improved to open and stopped the reliability. The problem of current relay contact points control current -limiting resistor the joining and withdraw from for opening and stopping device life weak point, current -limiting peak clipping reliability is poor, and the line is many, and mechanical structure is complicated, and the vibration resistance is poor, and inefficacy hidden danger is started in the existence is solved.
Description
Technical field
This utility model relates to a kind of electronic current-limiting relay for start and stop starter, belongs to automobile starter corollary equipment technical field.
Background technology
Vehicle uses start stop apparatus, when exercising Road and meeting red light wait or traffic congestion, electromotor can quit work voluntarily, can effectively reduce idling to waste and disposal of pollutants, but peak point current is very big during engine restarting, make the landing of supply voltage moment too many and some vehicle electronic device power-off reset problem occurs, have a strong impact on the comfort level of driver and crew.Existing start stop apparatus is for overcoming this defect, and have concatenates current-limiting resistance in starting circuit, and controls the addition of current-limiting resistance by relay contact and withdraw from；Having plenty of a set of high power voltage stabilized power source of extra increase and prevent vehicle electronic device power down, cost is high, and circuit is complicated.Such as Japan electric coating company is exactly to control the addition of current-limiting resistance by relay contact in starter major loop and withdraw from, exist because the relay contact life-span is short, problem out of control to current-limiting resistance, that finally can not play current limliting peak clipping effect, also results in starter cisco unity malfunction.Additionally, it is all four wire connection structures that relay contact control current-limiting resistance to add and withdraw from circuit, line is many, can reduce the reliability of start stop apparatus work, and add cost.
Refer to Japan electric coating house journal: patent No. 200910005683.9[has the starter relay that the resistance of improvement is arranged].
Summary of the invention
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, there is provided a kind of line few, circuit structure is simple, stable and reliable in work, service life is long, start and stop current limliting peak clipping is effective, attaching is conveniently used for the electronic current-limiting relay of start and stop starter, solves prior art and uses the addition of the Control current-limiting resistance having contact and withdraw from, to limit current peak, make start stop apparatus short for service life, current limliting peak clipping functional reliability is poor, and line is many, complicated in mechanical structure, vibration resistance is poor, and there is the potential problem of defective starter.
This utility model is to realize above-mentioned purpose by the following technical solutions:
This electronic current-limiting relay being used for start and stop starter is made up of delay circuit, booster driving circuit, MOS power transistor circuits and current-limiting resistance R0, it is characterised in that: relay body is serially connected in starter circuit；The positive terminal of relay body is connected in parallel with contact 30b, current-limiting resistance R0, and the negative pole end of relay body is connected in parallel with the positive terminal M of current-limiting resistance R0 and starting motor；The drain electrode end of the field effect transistor of the positive terminal of delay circuit, the positive terminal of booster driving circuit and MOS power transistor circuits is connected in parallel with contact 30b；The outfan of delay circuit is connected with the input of booster driving circuit, and the outfan of booster driving circuit is connected with the gate terminal of the field effect transistor of MOS power transistor circuits；The equal ground connection of negative pole end of delay circuit and booster driving circuit；The sources connected in parallel of the field effect transistor of MOS power transistor circuits connects current-limiting resistance R0 and starts the positive terminal M of motor, starts the negative pole end ground connection of motor；
When electromagnetic switch closes contact 30 and 30b short circuit, relay body positive terminal obtains electric, export high potential control booster driving circuit after delay circuit time delay 100 ~ 150mS to start working, output voltage drives the grid of the field effect transistor of MOS power transistor circuits, the all field effect transistor making MOS power transistor circuits are become entirely turning on by cut-off, make the current-limiting resistance R0 being connected between contact 30b and starting motor terminal present the Low ESR of 0.5m Ω after 10m Ω high impedance is changed into short circuit after maintaining 100 ~ 150mS.
Described MOS power transistor circuits includes at least four field effect transistor, resistance R1 and stabilivolt D1；The gate connected in parallel of multiple field effect transistor connects, drain electrode is connected in parallel, sources connected in parallel connects；It is connected in parallel to current-limiting resistance R0 between drain electrode and the source electrode of field effect transistor；When the field effect transistor of MOS power transistor circuits is become conducting from cut-off, the impedance at current-limiting resistance R0 two ends will be reduced to 0.5 m Ω by 10m Ω；The instantaneous pressure avoiding starting circuit is added between drain electrode and source electrode puncture field effect transistor.
Described delay circuit at least two kinds: delay circuit A and delay circuit B, the circuit structure of the two delay circuit is different, but acts on identical, i.e. delay time is 100 ~ 150mS, all provides input signal for booster driving circuit.
Described booster driving circuit at least two kinds: one is chip drives, it two is that DC-DC drives, and the circuit structure of two kinds of booster driving circuits is different, but acts on identical, is the most all conducting and the cut-off of the field effect transistor driving MOS power transistor circuits.
The booster driving circuit of described employing chip drives is made up of NPN audion Q4, voltage doubling rectifing circuit, resistance R9；Voltage doubling rectifing circuit is made up of electric capacity C1 and C3, diode D3 and D4, resistance R7, R8 and R10；The base stage of NPN audion Q4 is connected by 5 ends of the MCU chip of resistance R9 and delay circuit A, and the colelctor electrode of NPN audion Q4 connects voltage doubling rectifing circuit, the grounded emitter of NPN audion Q4；By voltage doubling rectifing circuit booster tension, output drives MOS power transistor circuits.
The booster driving circuit that described employing DC-DC drives is made up of small-power DC-DC power source.
Described delay circuit A is adaptive with the booster driving circuit of chip drives: delay circuit A is made up of MCU chip, NPN audion Q2 and PNP triode Q3, resistance R5 and R6, stabilivolt D2, electric capacity C2；5 ends of MCU chip produce oscillator signal, and 7 ends of MCU chip produce time delayed signal；Described oscillator signal, by the voltage doubling rectifing circuit booster tension of the booster driving circuit of chip drives, controls NPN audion Q2 and the conducting of PNP triode Q3 and cut-off, finally drives conducting and the cut-off of the field effect transistor of MOS power transistor circuits.
The booster driving circuit that described delay circuit B Yu DC-DC drives is adaptive: delay circuit B is made up of NPN audion Q2, stabilivolt D, resistance R1 and electric capacity C1；The base stage of NPN audion Q2 is connected in parallel resistance R1 and electric capacity C1 by stabilivolt D；The input of the booster driving circuit that the colelctor electrode of NPN audion Q2 drives with DC-DC is connected；The emitter stage of NPN audion Q2 and the equal ground connection of electric capacity C1；Another input of resistance R1 and DC-DC booster driving circuit is connected.
This utility model having the beneficial effects that compared with prior art:
The MOS power transistor circuits of this electronic current-limiting relay being used for start and stop starter uses contactless field effect transistor to substitute relay contact, controls the addition of current-limiting resistance with this or withdraws from, and service life is long.Simultaneously, owing to being connected in parallel to several milliohm, the current-limiting resistance of multikilowatt power between drain electrode and the source electrode of field effect transistor, hardly possible have high pressure to be applied between drain electrode and source electrode, therefore the probability that field effect transistor is breakdown there's almost no, even if the breakdown disabler being also not result in starter of field effect transistor.Current limliting peak clipping is effective, start and stop are stable, possesses the dual function ensureing to cast anchor driver's comfort level and avoiding fault occurring.Remove and firing tip the wire that connects, be achieved that current-limiting function only with three lines, owing to decreasing connecting line, therefore improve the reliability of work.Start and stop are effective, easy to operate, effectively reduce manufacturing cost.Solve prior art well use the addition of Control current-limiting resistance and withdraw from, to limit current peak so that start stop apparatus is short for service life, current limliting peak clipping functional reliability is poor, line is many, and circuit structure is complicated, and there is the potential problem of defective starter.
Accompanying drawing explanation
Fig. 1 is the circuit theory block diagram of a kind of electronic current-limiting relay for start and stop starter；
Fig. 2 is the circuit theory schematic diagram during booster driving circuit employing chip drives of a kind of electronic current-limiting relay for start and stop starter；
Fig. 3 is the circuit theory schematic diagram during booster driving circuit employing DC-DC driving of a kind of electronic current-limiting relay for start and stop starter；
Fig. 4 is the current limliting peak clipping effect waveform diagram of a kind of electronic current-limiting relay for start and stop starter；
Fig. 5 is four wire connection structure schematic diagrams of prior art.
In figure: 1, power supply, 2, electromagnetic switch, 3, start motor, 4, relay body, 4-1, delay circuit, 4-2, booster driving circuit, 4-3, MOS power transistor circuits, 4-11, delay circuit A, 4-12, delay circuit B.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail:
This electronic current-limiting relay being used for start and stop starter is made up of delay circuit 4-1, booster driving circuit 4-2, MOS power transistor circuits 4-3 and current-limiting resistance R0, and relay body 4 is serially connected in starter circuit；The positive terminal of relay body 4 is connected in parallel with contact 30b, current-limiting resistance R0, and the negative pole end of relay body 4 is connected in parallel with the positive terminal M of current-limiting resistance R0 and starting motor 3；The drain output of the field effect transistor of the positive terminal of delay circuit 4-1, the positive terminal of booster driving circuit 4-2 and MOS power transistor circuits 4-3 is connected in parallel with contact 30b；The outfan of delay circuit 4-1 is connected with the input of booster driving circuit 4-2, and the outfan of booster driving circuit 4-2 is connected with the gate input of the field effect transistor of MOS power transistor circuits 4-3；The equal ground connection of negative pole end of delay circuit 4-1 and booster driving circuit 4-2；The sources connected in parallel of the field effect transistor of MOS power transistor circuits 4-3 connects current-limiting resistance R0 and starts the positive terminal M of motor 3, starts the negative pole end ground connection of motor 3；
When electromagnetic switch 2 closes contact 30 and 30b short circuit, relay body 4 positive terminal obtains electric, export high potential control booster driving circuit 4-2 after delay circuit 4-1 time delay 100 ~ 150mS to start working, output voltage drives the grid of the field effect transistor of MOS power transistor circuits 4-3, the all field effect transistor making MOS power transistor circuits 4-3 are become entirely turning on by cut-off, make the current-limiting resistance R0 being connected between contact 30b and starting motor 3 terminal present the Low ESR of 0.5m Ω after 10m Ω high impedance is changed into short circuit after maintaining 100 ~ 150mS.
Described delay circuit 4-1 at least two kinds: delay circuit A4-11 and delay circuit B4-12, the circuit structure of the two delay circuit is different, but acts on identical, i.e. delay time is 100 ~ 150mS, all provides input signal for booster driving circuit 4-2.
Described booster driving circuit 4-2 at least two kinds: one is the booster driving circuit 4-21 of chip drives, its two booster driving circuit 4-22 driven for DC-DC, the circuit structure of two kinds of booster driving circuits is different, but act on identical, be the most all conducting and the cut-off of the field effect transistor driving MOS power transistor circuits 4-3.
The booster driving circuit 4-21 of described chip drives is made up of NPN audion Q4, voltage doubling rectifing circuit, resistance R9；Voltage doubling rectifing circuit is made up of electric capacity C1 and C3, diode D3 and D4, resistance R7, R8 and R10；The base stage of NPN audion Q4 is connected by 5 ends of the MCU chip of resistance R9 and delay circuit A4-11, and the colelctor electrode of NPN audion Q4 connects voltage doubling rectifing circuit, the grounded emitter of NPN audion Q4；By voltage doubling rectifing circuit booster tension, output drives MOS power transistor circuits 4-3.
The booster driving circuit 4-22 that described employing DC-DC drives is made up of small-power DC-DC power source.
Described delay circuit A4-11 is adaptive with the booster driving circuit 4-21 of chip drives: delay circuit A4-11 is made up of MCU chip, NPN audion Q2 and PNP triode Q3, resistance R5 and R6, stabilivolt D2, electric capacity C2；5 ends of MCU chip produce oscillator signal, and 7 ends of MCU chip produce time delayed signal；Described oscillator signal, by the voltage doubling rectifing circuit booster tension of the booster driving circuit 4-21 of chip drives, controls NPN audion Q2 and the conducting of PNP triode Q3 and cut-off, finally drives conducting and the cut-off of the field effect transistor of MOS power transistor circuits 4-3.
The booster driving circuit 4-22 that described delay circuit B4-12 Yu DC-DC drives is adaptive: delay circuit B4-12 is made up of NPN audion Q2, stabilivolt D, resistance R1 and electric capacity C1；The base stage of NPN audion Q2 is connected in parallel resistance R1 and electric capacity C1 by stabilivolt D；The input of the booster driving circuit 4-22 that the colelctor electrode of NPN audion Q2 drives with DC-DC is connected；The emitter stage of NPN audion Q2 and the equal ground connection of electric capacity C1；Another input of the booster driving circuit 4-22 that resistance R1 with DC-DC drives is connected.
Described MOS power transistor circuits 4-3 includes at least four field effect transistor, resistance R1 and stabilivolt D1；The gate connected in parallel of four field effect transistor connects, drain electrode is connected in parallel, sources connected in parallel connects；It is connected in parallel to current-limiting resistance R0 between drain electrode and the source electrode of field effect transistor；When the field effect transistor of MOS power transistor circuits 4-3 is become conducting from cut-off, the impedance at current-limiting resistance R0 two ends will be reduced to 0.5 m Ω by 10m Ω；Avoid the instantaneous pressure in starting circuit to be added between drain electrode and source electrode and puncture field effect transistor.(seeing Fig. 1～5)
The operation principle of this electronic current-limiting relay being used for start and stop starter is as follows:
For reducing transient starting peak point current, in traditional startup owner loop, concatenate this electronic current-limiting relay for start and stop starter；nullWhen ignition switch Ig closes，Electromagnetic switch 2 closes subsequently，The contact of electromagnetic switch 2 is by 30 and 30b end short circuits，The positive terminal of relay body 1 obtains electric，Delay circuit 4-1 starts timing，After time delay 100 ~ 150mS，Delay circuit 4-1 exports high potential，Control booster driving circuit 4-2 to start working，Booster driving circuit 4-2 output voltage，Drive the grid of multiple field effect transistor of MOS power transistor circuits 4-3，The field effect transistor making MOS power transistor circuits 4-3 is become entirely turning on from cut-off，So，The current-limiting resistance R0 being connected between contact 30b and starting motor 3 positive terminal M is made to present the Low ESR of 0.5m Ω after 10m Ω high impedance is changed into short circuit after maintaining 100 ~ 150mS，So，Limit the locked rotor current peak value starting motor 3 moment，(seeing Fig. 4) current peak is reduced to A1 point from A3 point.After recovering Low ESR, because starting motor 3 transferred to rotation status by locked rotor condition, shown in its current peak such as A2 point, hereafter starting motor 3 and being operated in normal total power output state.(seeing Fig. 1)
Embodiment 1:(sees Fig. 2)
When booster driving circuit is chip drives: 5 ends of the MCU chip of delay circuit A4-11 produce oscillator signal, this oscillator signal is transported to the base stage of NPN audion Q4 by the resistance R9 of the booster driving circuit 4-21 of chip drives, by by electric capacity C1 and C3, diode D3 and D4, resistance R7, the voltage doubling rectifing circuit of R8 and R10 composition brings the voltage up, time delayed signal output is produced at its 7 end after being processed by MCU chip, control NPN audion Q2 and the conducting of PNP triode Q3 and cut-off, conducting and the cut-off of the field effect transistor of MOS power transistor circuits 4-3 is driven finally by resistance R3 output signal.1 end of MCU chip is working power end, its 8 end ground connection.
Embodiment 2:(sees Fig. 3)
When booster driving circuit uses DC-DC power source to drive: the colelctor electrode output signal of the NPN audion Q2 of delay circuit B4-12, the booster driving circuit 4-22 controlling DC-DC driving starts working after time delay 100 ~ 150mS, the output signal of the booster driving circuit 4-22 that DC-DC drives delivers to the grid of the field effect transistor of MOS power transistor circuits 4-3, controls conducting and the cut-off of field effect transistor.
Delay circuit 4-1 is not limited to delay circuit A4-11 and the delay circuit B4-12 that this utility model is selected, as long as delay time is 100 ~ 150mS, can provide the most alternative use of delay circuit of other circuit structure of adaptive input signal for corresponding booster driving circuit.
This electronic current-limiting relay being used for start and stop starter uses contactless fet power pipe to substitute relay contact, controls the addition of current-limiting resistance R0 and withdraws from, and service life is long.After the drain electrode of the field effect transistor of current-limiting resistance R0 and MOS power transistor circuits 4-3 is connected with sources connected in parallel, again this electronic current-limiting relay being used for start and stop starter is connected in series in starter major loop, can not only function well as the effect of current limliting peak clipping, and eliminate and firing tip the wire that connects；Simplify circuit connection structure, improve start and stop reliability.Meanwhile, it is attempted by the several milliohms between field effect transistor drain electrode and source electrode, the current-limiting resistance R0 of multikilowatt power, can effectively prevent field effect transistor from puncturing and cause current-limiting function to lose efficacy.This electronic current-limiting relay being used for start and stop starter has produced exemplar, and in practical probation, driver is reflected easy to operate, and comfort is good, start and stop starter stable work in work.
The above is preferred embodiment of the present utility model, flesh and blood of the present utility model is not made any pro forma restriction by the example above explanation, any simple modification that above detailed description of the invention has been made after having read this specification by person of an ordinary skill in the technical field according to technical spirit of the present utility model or deformation, and the technology contents possibly also with the disclosure above is changed or is modified to the Equivalent embodiments of equivalent variations, all still fall within the range of technical solutions of the utility model, without departing from spirit and scope of the present utility model.
Claims (8)
1. the electronic current-limiting relay for start and stop starter, it is made up of delay circuit (4-1), booster driving circuit (4-2), MOS power transistor circuits (4-3) and current-limiting resistance R0, it is characterised in that: relay body (4) is serially connected in starter circuit；The positive terminal of relay body (4) is connected in parallel with contact 30b, current-limiting resistance R0 and electromagnetic switch (2), and the negative pole end of relay body (1) is connected in parallel with the positive terminal of current-limiting resistance R0 and starting motor (3)；The drain output of the field effect transistor of the positive terminal of delay circuit (4-1), the positive terminal of booster driving circuit (4-2) and MOS power transistor circuits (4-3) is connected in parallel with contact 30b；The outfan of delay circuit (4-1) is connected with the input of booster driving circuit (4-2), and the outfan of booster driving circuit (4-2) is connected with the gate input of the field effect transistor of MOS power transistor circuits (4-3)；The equal ground connection of negative pole end of delay circuit (4-1) and booster driving circuit (4-2)；The sources connected in parallel of the field effect transistor of MOS power transistor circuits (4-3) connects current-limiting resistance R0 and starts the positive terminal of motor (3), starts the negative pole end ground connection of motor (3)；
When electromagnetic switch (2) closes contact 30 and 30b short circuit, relay body (1) positive terminal obtains electric, export high potential control booster driving circuit (4-2) after delay circuit (4-1) time delay 100 ~ 150mS to start working, output voltage drives the grid of the field effect transistor of MOS power transistor circuits (4-3), the all field effect transistor making MOS power transistor circuits (4-3) are become entirely turning on by cut-off, the current-limiting resistance R0 being connected between contact 30b and starting motor terminal is made to present the Low ESR of 0.5m Ω after 10m Ω high impedance is changed into short circuit after maintaining 100 ~ 150mS.
A kind of electronic current-limiting relay for start and stop starter the most according to claim 1, it is characterised in that: described MOS power transistor circuits (4-3) includes at least four field effect transistor, resistance R1 and stabilivolt D1；The gate connected in parallel of four field effect transistor connects, drain electrode is connected in parallel, sources connected in parallel connects；It is connected in parallel to current-limiting resistance R0 between drain electrode and the source electrode of field effect transistor；When the field effect transistor of MOS power transistor circuits (4-3) is become conducting from cut-off, the resistance that can control current-limiting resistance R0 is reduced to 0.5 m Ω by 10m Ω；Avoid the instantaneous pressure in starting circuit to be added between drain electrode and source electrode and puncture field effect transistor.
A kind of electronic current-limiting relay for start and stop starter the most according to claim 1, it is characterized in that: described delay circuit (4-1) at least two kinds: delay circuit A(4-11) and delay circuit B(4-12), the circuit structure of the two delay circuit is different, but act on identical, i.e. delay time is 100 ~ 150mS, is all that booster driving circuit (4-2) provides input signal.
A kind of electronic current-limiting relay for start and stop starter the most according to claim 1, it is characterized in that: described booster driving circuit (4-2) at least two kinds: one is the booster driving circuit (4-21) of chip drives, its two booster driving circuit (4-22) driven for DC-DC, the circuit structure of two kinds of booster driving circuits is different, but act on identical, be the most all conducting and the cut-off of the field effect transistor driving MOS power transistor circuits (4-3).
A kind of electronic current-limiting relay for start and stop starter the most according to claim 4, it is characterised in that: the booster driving circuit (4-21) of described chip drives is made up of NPN audion Q4, voltage doubling rectifing circuit, resistance R9；Voltage doubling rectifing circuit is made up of electric capacity C1 and C3, diode D3 and D4, resistance R7, R8 and R10；The base stage of NPN audion Q4 passes through resistance R9 and delay circuit A(4-11) 5 ends of MCU chip be connected, the colelctor electrode connection of NPN audion Q4 has voltage doubling rectifing circuit, the grounded emitter of NPN audion Q4；By voltage doubling rectifing circuit booster tension, output drives MOS power transistor circuits (4-3).
A kind of electronic current-limiting relay for start and stop starter the most according to claim 4, it is characterised in that: the booster driving circuit (4-22) that described employing DC-DC drives is made up of small-power DC-DC power source.
A kind of electronic current-limiting relay for start and stop starter the most according to claim 1, it is characterised in that: described delay circuit A(4-11) adaptive with the booster driving circuit (4-21) of chip drives: delay circuit A(4-11) to be made up of MCU chip, NPN audion Q2 and PNP triode Q3, resistance R5 and R6, stabilivolt D2, electric capacity C2；5 ends of MCU chip produce oscillator signal, and 7 ends of MCU chip produce time delayed signal；Described oscillator signal is by the voltage doubling rectifing circuit booster tension of the booster driving circuit (4-21) of chip drives, control NPN audion Q2 and the conducting of PNP triode Q3 and cut-off, finally drive conducting and the cut-off of the field effect transistor of MOS power transistor circuits (4-3).
A kind of electronic current-limiting relay for start and stop starter the most according to claim 1, it is characterised in that: the booster driving circuit (4-22) described delay circuit B(4-12) driven with DC-DC is adaptive: delay circuit B(4-12) be made up of NPN audion Q2, stabilivolt D, resistance R1 and electric capacity C1；The base stage of NPN audion Q2 is connected in parallel resistance R1 and electric capacity C1 by stabilivolt D；The input of the booster driving circuit (4-22) that the colelctor electrode of NPN audion Q2 drives with DC-DC is connected；The emitter stage of NPN audion Q2 and the equal ground connection of electric capacity C1；Another input of the booster driving circuit (4-22) that resistance R1 with DC-DC drives is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620186661.2U CN205478063U (en) | 2016-03-11 | 2016-03-11 | A electronic type current limiting relay for opening starter stops |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620186661.2U CN205478063U (en) | 2016-03-11 | 2016-03-11 | A electronic type current limiting relay for opening starter stops |
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| Publication Number | Publication Date |
|---|---|
| CN205478063U true CN205478063U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620186661.2U Withdrawn - After Issue CN205478063U (en) | 2016-03-11 | 2016-03-11 | A electronic type current limiting relay for opening starter stops |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649846A (en) * | 2016-03-11 | 2016-06-08 | 湖北显风电子有限公司 | Electronic current-limiting relay for starting and stopping starter |
-
2016
- 2016-03-11 CN CN201620186661.2U patent/CN205478063U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649846A (en) * | 2016-03-11 | 2016-06-08 | 湖北显风电子有限公司 | Electronic current-limiting relay for starting and stopping starter |
| CN105649846B (en) * | 2016-03-11 | 2017-06-23 | 湖北显风电子有限公司 | For the electronic current-limiting relay of start and stop starter |
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Granted publication date: 20160817 Effective date of abandoning: 20170623 |