CN112467687A - 一种负载设备保护电路及电子设备 - Google Patents
一种负载设备保护电路及电子设备 Download PDFInfo
- Publication number
- CN112467687A CN112467687A CN202011268721.2A CN202011268721A CN112467687A CN 112467687 A CN112467687 A CN 112467687A CN 202011268721 A CN202011268721 A CN 202011268721A CN 112467687 A CN112467687 A CN 112467687A
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- Prior art keywords
- current
- circuit
- voltage
- operational amplifier
- resistor
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- 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.)
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-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202011268721.2A CN112467687A (zh) | 2020-11-13 | 2020-11-13 | 一种负载设备保护电路及电子设备 |
Applications Claiming Priority (1)
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CN202011268721.2A CN112467687A (zh) | 2020-11-13 | 2020-11-13 | 一种负载设备保护电路及电子设备 |
Publications (1)
Publication Number | Publication Date |
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CN112467687A true CN112467687A (zh) | 2021-03-09 |
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CN202011268721.2A Pending CN112467687A (zh) | 2020-11-13 | 2020-11-13 | 一种负载设备保护电路及电子设备 |
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CN (1) | CN112467687A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116930671A (zh) * | 2023-09-19 | 2023-10-24 | 成都光创联科技有限公司 | 一种用于电流驱动光器件性能测试的电路和方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105552868A (zh) * | 2016-01-29 | 2016-05-04 | 中国电子科技集团公司第二十三研究所 | 基于恒流供电方式的过流保护电路及其控制方法 |
WO2016090645A1 (zh) * | 2014-12-12 | 2016-06-16 | 深圳市聚作照明股份有限公司 | 驱动保护电路及led开关电源 |
CN107277978A (zh) * | 2017-07-12 | 2017-10-20 | 欧普照明股份有限公司 | 一种恒流输出电路及照明装置 |
CN208539545U (zh) * | 2018-07-03 | 2019-02-22 | 宁波兴为汽车电子有限公司 | 一种汽车负载过流保护装置 |
CN210517766U (zh) * | 2019-08-19 | 2020-05-12 | 厦门华源嘉航科技有限公司 | 一种线性恒流驱动过流保护电路 |
-
2020
- 2020-11-13 CN CN202011268721.2A patent/CN112467687A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016090645A1 (zh) * | 2014-12-12 | 2016-06-16 | 深圳市聚作照明股份有限公司 | 驱动保护电路及led开关电源 |
CN105552868A (zh) * | 2016-01-29 | 2016-05-04 | 中国电子科技集团公司第二十三研究所 | 基于恒流供电方式的过流保护电路及其控制方法 |
CN107277978A (zh) * | 2017-07-12 | 2017-10-20 | 欧普照明股份有限公司 | 一种恒流输出电路及照明装置 |
CN208539545U (zh) * | 2018-07-03 | 2019-02-22 | 宁波兴为汽车电子有限公司 | 一种汽车负载过流保护装置 |
CN210517766U (zh) * | 2019-08-19 | 2020-05-12 | 厦门华源嘉航科技有限公司 | 一种线性恒流驱动过流保护电路 |
Non-Patent Citations (1)
Title |
---|
刘国忠等: "《现代电子技术及应用》", 31 March 2010 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116930671A (zh) * | 2023-09-19 | 2023-10-24 | 成都光创联科技有限公司 | 一种用于电流驱动光器件性能测试的电路和方法 |
CN116930671B (zh) * | 2023-09-19 | 2023-11-21 | 成都光创联科技有限公司 | 一种用于电流驱动光器件性能测试的电路和方法 |
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PB01 | Publication | ||
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SE01 | Entry into force of request for substantive examination | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Yu Zhiwei Inventor after: Zhang Guangguang Inventor after: Wang Lujian Inventor after: Li Junhua Inventor after: Qiu Mengchun Inventor after: Liu Lifu Inventor after: Fu Chung Inventor before: Yu Zhiwei Inventor before: Zhang Guangguang Inventor before: Wang Lujian Inventor before: Li Junhua Inventor before: Qiu Mengchun Inventor before: Liu Lifu Inventor before: Fu Chung |
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WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210309 |