CN202495732U - Automatic recovery electronic fuse with soft start function - Google Patents
Automatic recovery electronic fuse with soft start function Download PDFInfo
- Publication number
- CN202495732U CN202495732U CN 201220050222 CN201220050222U CN202495732U CN 202495732 U CN202495732 U CN 202495732U CN 201220050222 CN201220050222 CN 201220050222 CN 201220050222 U CN201220050222 U CN 201220050222U CN 202495732 U CN202495732 U CN 202495732U
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- China
- Prior art keywords
- power distribution
- distribution controller
- emitting diode
- light
- fuse
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automatic recovery electronic fuse with a soft start function. The electronic fuse comprises a direct-current power supply, a power distribution controller, a first light-emitting diode, a second light-emitting diode, a first capacitor, a second capacitor, a first resistor, a second resistor, and a switch. When a failure, such as overcurrent or short circuit, occurs in a load of an electric appliance, the power distribution controller is automatically switched into a constant-current output mode, at the same time a low level is outputted from an overcurrent logic output end and the second light-emitting diode is lit, and the normal function of the power distribution controller is recovered until the failure is removed. The automatic recovery electronic fuse of the utility model is an electronic fuse which has a simple circuit structure and can be reusable. The automatic recovery electronic fuse of the utility model not only can be used to completely remove troubles of repeated burning of a fuse when failures related to the power supply is maintained, but also can be widely used in charger circuits of various mobile devices, and the fuse can be replaced by selecting appropriate parameters when a new electronic circuit or device is designed and trial-manufactured.
Description
Technical field
The utility model relates to a kind of fuse, relates in particular to a kind of automatic recovery electrical fuse with soft start function.
Background technology
Fuse is also claimed fuse, is the essential element of household appliances, electronic instrument and industrial equipment, plays the effect of load overcurrent fuse protection.But the present this fuse that adopts can only use once, must change after the damage, not only bothers, and has increased cost.
Summary of the invention
The purpose of the utility model provides a kind of automatic recovery electrical fuse with soft start function with regard to being in order to address the above problem.
The utility model is realized above-mentioned purpose through following technical scheme:
The utility model comprises DC power supply, power distribution controller, first light-emitting diode, second light-emitting diode, first electric capacity, second electric capacity, first resistance, second resistance and switch; First end of said first resistance is connected with second voltage input end with first voltage input end of first end of first end of said dc power anode, said first electric capacity, said second resistance, said power distribution controller simultaneously; Second end of said first resistance is connected with the positive pole of said first light-emitting diode; The negative pole of said first light-emitting diode is connected with the negative input of an end of second end of said first electric capacity, said switch, said power distribution controller and first end of said second electric capacity simultaneously; The other end of said switch is connected with the logic-enabled control end of said power distribution controller; Second end of said second resistance is connected with the positive pole of said second light-emitting diode; The negative pole of said second light-emitting diode is connected with the overcurrent logic output terminal of said power distribution controller; The 3rd output of first output of said power distribution controller, second output of said power distribution controller and said power distribution controller all is connected with second end of said second electric capacity, and the two ends of said second electric capacity are the load wiring end.
The beneficial effect of the utility model is:
The utility model is a kind of electrical fuse, and circuit structure is simple, and is reusable.The utility model not only can be removed the worry of burning insurance repeatly fully when keeping in repair the fault relevant with power supply; Also can be widely used in the charger circuit of various mobile devices; In design, when manufacturing experimently new electronic circuit or device, can select suitable parameter to replace fuse.
Description of drawings
Accompanying drawing is the circuit structure schematic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Shown in accompanying drawing: the utility model comprises DC power supply, power distribution controller IC, first LED 1, second LED 2, first capacitor C 1, second capacitor C 2, first resistance R 1, second resistance R 2 and switch S B; First end of first resistance R 1 is connected with the second voltage input end IN2 with first end of dc power anode, first capacitor C 1, first end of second resistance R 2, the first voltage input end IN1 of power distribution controller IC simultaneously; Second end of first resistance R 1 is connected with the positive pole of first LED 1; The negative pole of first LED 1 is connected with second end of first capacitor C 1, the end of switch S B, the negative input of power distribution controller IC and first end of second capacitor C 2 simultaneously; The other end of switch S B is connected with the logic-enabled control end EN of power distribution controller IC; Second end of second resistance R 2 is connected with the positive pole of second LED 2; The negative pole of the second light-emitting diodes LED2 is connected with the overcurrent logic output terminal DC of power distribution controller IC; The 3rd output OUT3 of the first output OUT1 of power distribution controller IC, the second output OUT2 of power distribution controller IC and power distribution controller IC all is connected with second end of second capacitor C 2, and the two ends of second capacitor C 2 are the load wiring end.
Shown in accompanying drawing: the power distribution controller IC is the N-channel MOS FET type power distribution switch that TIX releases.It adopts 8 pin DIP dual in-line package, and each pin function is following, and the GND end is negative input; IN1 and IN2 are voltage input ends, and input voltage range is VIN=0.3～7V; The EN end is logic-enabled control end, switch conduction during EN=0; The DC end is the overcurrent logic output terminal, and DC=0 down nonserviceables; OUT1, OUT2 and OUT3 are voltage output end, VOUT=0.3-(VIN+0.3) V.When electrical appliance load RL overcurrent or short circuit; The power distribution controller IC automatically switches into the constant current way of output; The overcurrent logic output terminal DC output hopping of power distribution controller IC is a low level simultaneously; Faulty indication pipe second LED 2 ignites, and after fault was got rid of, the power distribution controller IC just recovered normal function.Should and connect the first voltage input end IN1 and the second voltage input end IN2 during use, make power distribution controller IC pressure drop and least in power-consuming.
Claims (1)
1. automatic recovery electrical fuse with soft start function; It is characterized in that: comprise DC power supply, power distribution controller, first light-emitting diode, second light-emitting diode, first electric capacity, second electric capacity, first resistance, second resistance and switch; First end of said first resistance is connected with second voltage input end with first voltage input end of first end of first end of said dc power anode, said first electric capacity, said second resistance, said power distribution controller simultaneously; Second end of said first resistance is connected with the positive pole of said first light-emitting diode; The negative pole of said first light-emitting diode is connected with the negative input of an end of second end of said first electric capacity, said switch, said power distribution controller and first end of said second electric capacity simultaneously; The other end of said switch is connected with the logic-enabled control end of said power distribution controller; Second end of said second resistance is connected with the positive pole of said second light-emitting diode; The negative pole of said second light-emitting diode is connected with the overcurrent logic output terminal of said power distribution controller; The 3rd output of first output of said power distribution controller, second output of said power distribution controller and said power distribution controller all is connected with second end of said second electric capacity, and the two ends of said second electric capacity are the load wiring end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220050222 CN202495732U (en) | 2012-02-16 | 2012-02-16 | Automatic recovery electronic fuse with soft start function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220050222 CN202495732U (en) | 2012-02-16 | 2012-02-16 | Automatic recovery electronic fuse with soft start function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495732U true CN202495732U (en) | 2012-10-17 |
Family
ID=47001944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220050222 Expired - Fee Related CN202495732U (en) | 2012-02-16 | 2012-02-16 | Automatic recovery electronic fuse with soft start function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052037A (en) * | 2013-03-15 | 2014-09-17 | 成都瑞途电子有限公司 | Electronic fuse apparatus based on power distribution controller |
-
2012
- 2012-02-16 CN CN 201220050222 patent/CN202495732U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052037A (en) * | 2013-03-15 | 2014-09-17 | 成都瑞途电子有限公司 | Electronic fuse apparatus based on power distribution controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Baoguang Electric Equipment Co., Ltd. Assignor: Chengdu Xihui Technology Co., Ltd. Contract record no.: 2012510000131 Denomination of utility model: Automatic recovery electronic fuse with soft start function Granted publication date: 20121017 License type: Exclusive License Record date: 20121122 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Baoguang Electric Equipment Co., Ltd. Assignor: Chengdu Xihui Technology Co., Ltd. Contract record no.: 2012510000131 Denomination of utility model: Automatic recovery electronic fuse with soft start function Granted publication date: 20121017 License type: Exclusive License Record date: 20121122 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20140216 |