CN201918774U - Self-cooling type dual-loop control charger - Google Patents
Self-cooling type dual-loop control charger Download PDFInfo
- Publication number
- CN201918774U CN201918774U CN2011200062368U CN201120006236U CN201918774U CN 201918774 U CN201918774 U CN 201918774U CN 2011200062368 U CN2011200062368 U CN 2011200062368U CN 201120006236 U CN201120006236 U CN 201120006236U CN 201918774 U CN201918774 U CN 201918774U
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- China
- Prior art keywords
- circuit
- charger
- self
- protection circuit
- loop control
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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 a self-cooling type dual-loop control charger. A main charging circuit of the charger comprises a bridge type rectifier circuit, two smoothing filter circuits and a DC/DC (direct current/direct current) converter circuit, the main charging circuit of the charger is provided with a resonant voltage type dual-loop control circuit, which is connected with a feedback sampling circuit, a current-sharing control circuit and an overcurrent, overvoltage and short circuit protection circuit, and the main charging circuit of the charger is also provided with an input protection circuit and an output protection circuit. Since the main charging circuit of the charger is added with the resonant voltage type dual-loop control circuit, once overcurrent, overvoltage or short circuit occurs in the process of charging carried out by the charger, the internal protection circuit can carry out handling in time, consequently, the charger can be safer and more stable in the process of charging, and meanwhile, the service life of the charger is prolonged as well.
Description
Technical field
The utility model relates to a kind of charger, especially a kind of self cool dicyclo control type charger.
Background technology
At present, charging has wide range of applications, and along with the development of cordless power tool, supporting with it charger also constantly improves development aspect charging rate, performance, reliability.Quick charger kind commonly used in the existing cordless power tool is a lot; but existing charge prepd such as charger etc.; usually all be that hard switching (efficient is low below 80%) volume is relatively large; be generally wind-cooling heat dissipating; and overcurrent-overvoltage and short-circuit protection circuit are not set; in case circuit generation overcurrent, overvoltage or short-circuit conditions just directly cause scrapping of entire product, bring economic loss to the user.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of and has had that overcurrent-overvoltage and short-circuit protection circuit, security performance are better, longer service life and belong to the less relatively self cool dicyclo control type charger of soft switch (efficient is high more than 92%) volume.
For achieving the above object; the utility model provides a kind of self cool dicyclo control type charger; constitute charger charging main circuit by bridge rectifier, smoothed filter circuit, DC/DC translation circuit, smoothed filter circuit; described charger charging main circuit is provided with resonance potential type dicyclo control loop, is connected with feedback sampling circuit, equalizing control circuit, overcurrent-overvoltage short-circuit protection circuit on the described resonance potential type dicyclo control loop.
The utility model can further be set to described feedback sampling circuit and connect with equalizing control circuit, and described overcurrent-overvoltage short-circuit protection circuit is in parallel with feedback sampling circuit.
The utility model also can further be set to also be provided with input protection circuit and output protection circuit on the described charger charging main circuit.
The beneficial effects of the utility model are: owing to set up resonance potential type dicyclo control loop on charger charging main circuit; and be connected with feedback sampling circuit, equalizing control circuit, overcurrent-overvoltage short-circuit protection circuit on the described resonance potential type dicyclo control loop; when so in case overcurrent, overvoltage or short-circuit conditions take place in charger in charging process; can handle in time by the protective circuit of inside; make charger fail safe in charging process better more stable, and the soft little while of switch efficiency golf calorific value has also prolonged the useful life of charger.
The casing that the utility model also can further be set to described charger body is provided with the self-cold radiating device.
Adopt said structure, charger body provided by the utility model can be carried out cooling heat dissipation by the self-cold radiating device, avoided the normal charge device directly to cause the generation of phenomenons such as charger damage, further prolonged the useful life of charger because of radiator fan breaks down.
Description of drawings
Fig. 1 is a theory structure block diagram of the present utility model;
Fig. 2 is the vertical view of the utility model charger body.
Embodiment
Provided a kind of self cool dicyclo control type charger as shown in Figure 1; by bridge rectifier 11; smoothed filter circuit 12; DC/DC translation circuit 13; smoothed filter circuit 12 constitutes charger charging main circuit 1; described charger charging main circuit 1 is provided with resonance potential type dicyclo control loop 14; be connected with feedback sampling circuit 15 on the described resonance potential type dicyclo control loop 14; equalizing control circuit 16; overcurrent-overvoltage short-circuit protection circuit 17; also be provided with input protection circuit 18 and output protection circuit 19 on the described charger charging main circuit 1; described feedback sampling circuit 15 is connected with equalizing control circuit 16, and described overcurrent-overvoltage short-circuit protection circuit 17 is in parallel with feedback sampling circuit 15.
Wherein said output over-voltage protection circuit: be the built-in over-voltage protective circuit, overvoltage appears and after module be automatically locked, module fault indicator is bright, malfunctioning module is deactivated automatically, does not influence whole system and normally moves; Over-voltage protection point: the 220V module is 285V ± 5V.
The output current limiting protective circuit: each module output current maximum constraints is 1.05 times of output-current rating.
Short-circuit protection circuit: adopt the sagging current-limiting mode of retraction, module is pulled down to zero to output voltage in moment during output short-circuit, and limiting short-circuit current is at below 15% of output-current rating.But the module long-term work can not damage in short-circuit condition, and the back module of fixing a breakdown can be resumed work automatically.
The casing 21 of described as shown in Figure 2 charger body 2 is provided with self-cold radiating device 22.
Claims (5)
1. self cool dicyclo control type charger; constitute charger charging main circuit by bridge rectifier, smoothed filter circuit, DC/DC translation circuit, smoothed filter circuit; it is characterized in that: described charger charging main circuit is provided with resonance potential type dicyclo control loop, is connected with feedback sampling circuit, equalizing control circuit, overcurrent-overvoltage short-circuit protection circuit on the described resonance potential type dicyclo control loop.
2. a kind of self cool dicyclo control type charger according to claim 1, it is characterized in that: described feedback sampling circuit is connected with equalizing control circuit, and described overcurrent-overvoltage short-circuit protection circuit is in parallel with feedback sampling circuit.
3. a kind of self cool dicyclo control type charger according to claim 1 and 2 is characterized in that: also be provided with input protection circuit and output protection circuit on the described charger charging main circuit.
4. a kind of self cool dicyclo control type charger according to claim 1 and 2, it is characterized in that: the casing of described charger body is provided with the self-cold radiating device.
5. a kind of self cool dicyclo control type charger according to claim 3, it is characterized in that: the casing of described charger body is provided with the self-cold radiating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200062368U CN201918774U (en) | 2011-01-11 | 2011-01-11 | Self-cooling type dual-loop control charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200062368U CN201918774U (en) | 2011-01-11 | 2011-01-11 | Self-cooling type dual-loop control charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918774U true CN201918774U (en) | 2011-08-03 |
Family
ID=44418563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200062368U Expired - Fee Related CN201918774U (en) | 2011-01-11 | 2011-01-11 | Self-cooling type dual-loop control charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103947094A (en) * | 2011-11-21 | 2014-07-23 | 株式会社自动网络技术研究所 | Dc-dc converter |
-
2011
- 2011-01-11 CN CN2011200062368U patent/CN201918774U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103947094A (en) * | 2011-11-21 | 2014-07-23 | 株式会社自动网络技术研究所 | Dc-dc converter |
| CN103947094B (en) * | 2011-11-21 | 2016-08-24 | 株式会社自动网络技术研究所 | Dc-dc |
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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: 20110803 Termination date: 20130111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |