CN204666783U - A kind of testing circuit for relay drive circuit - Google Patents
A kind of testing circuit for relay drive circuit Download PDFInfo
- Publication number
- CN204666783U CN204666783U CN201520384241.0U CN201520384241U CN204666783U CN 204666783 U CN204666783 U CN 204666783U CN 201520384241 U CN201520384241 U CN 201520384241U CN 204666783 U CN204666783 U CN 204666783U
- Authority
- CN
- China
- Prior art keywords
- resistance
- diode
- electric capacity
- relay drive
- drive circuit
- 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
Abstract
The utility model discloses a kind of testing circuit for relay drive circuit, comprise input end AC_IN, described input end AC_IN is connected with resistance R3, resistance R4 is connected with at the other end of resistance R3, electric capacity C16 and optocoupler IC1, the other end ground connection of electric capacity C16, diode D1 parallel with one another is connected with at the other end of optocoupler IC1, electric capacity C12, electric capacity C13, battery EC2 and resistance R25, resistance R24 is provided with between electric capacity C12 and electric capacity C13, two groups of diode D2 in parallel are also provided with at the other end of optocoupler IC1, D5 and D3, D4, be connected with resistance R1A between diode D3 and diode D4, resistance R1A is in parallel with resistance R18, the other end of resistance R1A is provided with port ACN, be connected with resistance R2A between described diode D2 and diode D5, resistance R2A is with resistance R2B and be connected, the other end of resistance R2A is connected with relay drive circuit.
Description
Technical field
The utility model relates to testing circuit field, specifically, is related specifically to a kind of testing circuit for relay drive circuit.
Background technology
Relay is a kind of electric control device, is when the change of input quantity reaches regulation requirement, makes controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs in electric output circuit.It has control system and by the interactive relationship between control system.Usually be applied in the control circuit of robotization, it is actually the one " automatic switch " going to control big current running with small area analysis.Therefore play the effects such as automatic adjustment, safeguard protection, change-over circuit in circuit.Existing relay test mode is manual detection, and efficiency is lower.
Utility model content
The purpose of this utility model is for deficiency of the prior art, provides a kind of testing circuit for relay drive circuit, to solve the problem.
The technical matters that the utility model solves can realize by the following technical solutions:
A kind of testing circuit for relay drive circuit, comprise input end AC_IN, described input end AC_IN is connected with resistance R3, resistance R4 is connected with at the other end of resistance R3, electric capacity C16 and optocoupler IC1, the other end ground connection of electric capacity C16, diode D1 parallel with one another is connected with at the other end of optocoupler IC1, electric capacity C12, electric capacity C13, battery EC2 and resistance R25, resistance R24 is provided with between electric capacity C12 and electric capacity C13, two groups of diode D2 in parallel are also provided with at the other end of optocoupler IC1, D5 and D3, D4, be connected with resistance R1A between diode D3 and diode D4, resistance R1A is in parallel with resistance R18, the other end of resistance R1A is provided with port ACN, be connected with resistance R2A between diode D2 and diode D5, resistance R2A is with resistance R2B and be connected, the other end of resistance R2A is connected with relay drive circuit.
Compared with prior art, the beneficial effects of the utility model are as follows:
The relay drive circuit detected on pcb board can be directly used in, save the step of manual detection, for enterprise saves artificial and cost.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of testing circuit described in the utility model.
Fig. 2 is the circuit diagram of relay drive circuit described in the utility model.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
See Fig. 1 and Fig. 2, a kind of testing circuit for relay drive circuit described in the utility model, comprise input end AC_IN, described input end AC_IN is connected with resistance R3, resistance R4 is connected with at the other end of resistance R3, electric capacity C16 and optocoupler IC1, the other end ground connection of electric capacity C16, diode D1 parallel with one another is connected with at the other end of optocoupler IC1, electric capacity C12, electric capacity C13, battery EC2 and resistance R25, resistance R24 is provided with between electric capacity C12 and electric capacity C13, two groups of diode D2 in parallel are also provided with at the other end of optocoupler IC1, D5 and D3, D4, be connected with resistance R1A between diode D3 and diode D4, resistance R1A is in parallel with resistance R18, the other end of resistance R1A is provided with port ACN, be connected with resistance R2A between diode D2 and diode D5, resistance R2A is with resistance R2B and be connected, the other end of resistance R2A is connected with relay drive circuit.
Principle of the present utility model is as follows:
Then the level of AC_IN pin is detected to judge the quality of this relay drive circuit to P_REL pin level value.Whether can normally adhesive: to P_REL high level, K1 conducting seen by relay under normal circumstances, and the current potential of ACL with HEAT is identical, then the optocoupler IC1 conducting in the relay test circuit above, AC_IN is pulled to low level if detecting relay.
Detect relay whether can normally discharge: when be detected relay can normally, again give P_REL low level then relay can discharge, this time, HEAT point did not have voltage, then optocoupler IC1 below can not conducting, then AC_IN is high level.
Test through above-mentioned two steps then can judge that whether the last device of relay drive circuit is normal.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. the testing circuit for relay drive circuit, it is characterized in that: comprise input end AC_IN, described input end AC_IN is connected with resistance R3, resistance R4 is connected with at the other end of resistance R3, electric capacity C16 and optocoupler IC1, the other end ground connection of electric capacity C16, diode D1 parallel with one another is connected with at the other end of optocoupler IC1, electric capacity C12, electric capacity C13, battery EC2 and resistance R25, resistance R24 is provided with between electric capacity C12 and electric capacity C13, two groups of diode D2 in parallel are also provided with at the other end of optocoupler IC1, D5 and D3, D4, be connected with resistance R1A between diode D3 and diode D4, resistance R1A is in parallel with resistance R18, the other end of resistance R1A is provided with port ACN, be connected with resistance R2A between described diode D2 and diode D5, resistance R2A is with resistance R2B and be connected, the other end of resistance R2A is connected with relay drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384241.0U CN204666783U (en) | 2015-06-04 | 2015-06-04 | A kind of testing circuit for relay drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384241.0U CN204666783U (en) | 2015-06-04 | 2015-06-04 | A kind of testing circuit for relay drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204666783U true CN204666783U (en) | 2015-09-23 |
Family
ID=54137153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520384241.0U Expired - Fee Related CN204666783U (en) | 2015-06-04 | 2015-06-04 | A kind of testing circuit for relay drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204666783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036959A1 (en) * | 2019-08-30 | 2021-03-04 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method for electric control device, and electric car |
| WO2021036958A1 (en) * | 2019-08-30 | 2021-03-04 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method for electric control device, and electric car |
-
2015
- 2015-06-04 CN CN201520384241.0U patent/CN204666783U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036959A1 (en) * | 2019-08-30 | 2021-03-04 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method for electric control device, and electric car |
| WO2021036958A1 (en) * | 2019-08-30 | 2021-03-04 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method for electric control device, and electric car |
| US11435389B2 (en) | 2019-08-30 | 2022-09-06 | Contemporary Amperex Technology Co., Limited | Electrical control device detection circuit, detection method, and electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204391679U (en) | A kind of leakage current detection protection circuit | |
| CN203745608U (en) | Portable relay detector | |
| CN105067945A (en) | Intelligent detection unit with direct-current arcing detection function and junction box | |
| CN204666783U (en) | A kind of testing circuit for relay drive circuit | |
| CN104035435A (en) | Drive port self-diagnostic circuit | |
| CN204131085U (en) | Based on the battery system anti-surge circuit of hot plug chip | |
| CN104779577B (en) | A kind of current foldback circuit | |
| CN202841092U (en) | High-side switch output circuit with short-circuit protection function | |
| CN106646009A (en) | Electric vehicle battery management system testing device simulation battery device | |
| CN103487752B (en) | A kind of electromagnetic relay microcomputer debugging instrument | |
| CN211426729U (en) | Fire detection alarm electric quantity detection circuit and fire detection alarm | |
| CN204758689U (en) | Voltage detection circuit | |
| CN204836131U (en) | Effective switch input signal acquisition circuit of high level | |
| CN204613312U (en) | A kind of three-phase load unbalance warning device | |
| CN204389617U (en) | A kind of load aging monitoring device | |
| CN203455403U (en) | Battery voltage detection circuit based on Zener diode | |
| CN203688775U (en) | Multifunctional motor detection system | |
| CN206100262U (en) | Constant current power supply and TV set | |
| CN204228930U (en) | LED power aging testing jig | |
| CN204557250U (en) | A kind of electric distribution box Automatic Temperature Control | |
| CN205544218U (en) | Motor control and protection switch with cross heat -carrying memory protect function | |
| CN203225728U (en) | Time relay based on integrated circuit | |
| CN204597149U (en) | A kind of appliances power source socket | |
| CN105467330A (en) | LED power supply aging test tool | |
| CN204945324U (en) | Control series products batch quiescent current test circuit |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20180604 |