CN201893716U - Alternating current and direct current converting circuit - Google Patents
Alternating current and direct current converting circuit Download PDFInfo
- Publication number
- CN201893716U CN201893716U CN2010206527491U CN201020652749U CN201893716U CN 201893716 U CN201893716 U CN 201893716U CN 2010206527491 U CN2010206527491 U CN 2010206527491U CN 201020652749 U CN201020652749 U CN 201020652749U CN 201893716 U CN201893716 U CN 201893716U
- Authority
- CN
- China
- Prior art keywords
- circuit
- change
- emitting diode
- silicon photocell
- electrically connected
- 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
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to a direct current power supply, in particular to an alternating current and direct current converting circuit, which does not use a transformer for converting 220V alternating current into direct current. The direct current power supply is characterized in that a rectification circuit and a direct current to direct current (DC/DC) converting circuit are arranged in a casing, a load circuit of the rectification circuit is connected in series with a current limiting resistor R0 and a light emitting diode string, a silicon photocell group is arranged in the light emitting direction of the light emitting diode string, the voltage output end of the silicon photocell group is electrically connected with the input end of the DC/DC converting circuit, and the output end of the DC/DC converting circuit is electrically connected with the DC/DC voltage output end of the casing. The utility model provides the alternating current and direct current converting circuit without converting 220V alternating current into direct current by the transformer.
Description
Technical field
The utility model relates to a kind of DC power supply, particularly a kind ofly converts the 220V alternating current to galvanic ac-dc converter circuit without transformer.
Background technology
In electronic equipment, the required power supply of electronic device is many to be to convert to galvanicly by the 220V alternating current, and this transfer process has by transformer finishes the conversion of high pressure to low pressure, converts into low-voltage alternating-current to stream again.The switching power circuit of employing pattern is also arranged, and is that its volume of which kind of form all is must be bigger.It all needs transformer, and the transformer of Switching Power Supply is smaller.
The utility model content
The purpose of this utility model provides a kind of transformer that do not need and converts the 220V alternating current to galvanic ac-dc converter circuit.
The purpose of this utility model is to realize like this, a kind of ac-dc converter circuit, it is characterized in that: rectification circuit and DC/DC change-over circuit are arranged in housing, the load circuit of rectification circuit is serially connected with current-limiting resistance R0 and light emitting diode string, the silicon photocell group is arranged on the light emission direction of light emitting diode string, the voltage output end of silicon photocell group is electrically connected with the input of DC/DC change-over circuit, and the output of DC/DC change-over circuit is electrically connected with the DC/DC voltage output end of housing.
The light emitting diode string number of the load circuit serial connection of described rectification circuit is according to the output current and the voltage parameter decision of DC/DC change-over circuit.
The rectifier diode of described rectification circuit is a light-emitting diode.
Described rectification circuit is bridge rectifier or semibridge system rectification circuit.
Described silicon photocell component becomes many groups, being divided into many group silicon photocell groups is electrically connected with the input of a plurality of DC/DC change-over circuits respectively, the output of a plurality of DC/DC change-over circuits is electrically connected with a plurality of DC/DC voltage output ends of housing, and a plurality of DC/DC voltage output ends are not altogether or not altogether.
The utility model has the advantages that: owing to constitute the AC/DC change-over circuit by photoelectricity coupling circuit, a DC/DC change-over circuit, the diode of the rectification circuit of the input of photoelectricity coupling circuit is a light-emitting diode, the output circuit of photoelectricity coupling circuit is a silicon photocell, that is to say by the 220V alternating current is changeed the driven for emitting lights diode, by silicon photocell transform light energy is become electric energy, by the DC/DC change-over circuit voltage of silicon photocell is being changed into the direct current of needs at last.Direct current is to isolate fully with the 220V alternating current, therefore has the advantage that body is slight, reliability is high, anti-interference is good.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model embodiment 1 structural representation;
Fig. 3 is the utility model embodiment 2 structural representations.
Among the figure, 1, bridge rectifier; 2, DC/DC change-over circuit; 3, rectification circuit; 4, silicon photocell group; 5, housing; 6, light emitting diode string; 7, DC/DC voltage output end; 8, load circuit.
Embodiment
As shown in Figure 1, a kind of ac-dc converter circuit, rectification circuit 3 and DC/DC change-over circuit 2 are arranged in housing 5, the rectifier diode of rectification circuit 3 is light-emitting diodes, the load circuit 8 of rectification circuit 3 is serially connected with current-limiting resistance R0 and light emitting diode string 6, silicon photocell group 4 is arranged on the light emission direction of light emitting diode string 6, the voltage output end of silicon photocell group 4 is electrically connected with the input of DC/DC change-over circuit 2, and the output of DC/DC change-over circuit 2 is electrically connected with the DC/DC voltage output end 7 of housing 5.Rectification circuit 3 is bridge rectifiers 1, and light emitting diode string 6 numbers of load circuit 8 serial connections of bridge rectifier 1 are according to the output current and the voltage parameter decision of DC/DC change-over circuit 2.
As shown in Figure 2, rectification circuit 3 and DC/DC change-over circuit 2 are arranged in housing 5, the load circuit 8 of rectification circuit is serially connected with current-limiting resistance and light emitting diode string 6, silicon photocell group 4 is arranged on the light emission direction of light emitting diode string 6, the voltage output end of silicon photocell group 4 is electrically connected with the input of DC/DC change-over circuit 2, and the output of DC/DC change-over circuit 2 is electrically connected with the DC/DC voltage output end 7 of housing 5.Rectification circuit 3 is bridge rectifiers 1, the number of the light emitting diode string 6 of load circuit 8 serial connections of bridge rectifier 1 is to determine according to DC/DC output current and voltage, embodiment 2 is common rectification two utmost points with the rectifier diode that is not both rectification circuit 3 of embodiment 1, as 1N4001,1N4007 or the like.
As shown in Figure 3, rectification circuit 3 and DC/DC change-over circuit 2 are arranged in housing 5, the load circuit 8 of rectification circuit is serially connected with current-limiting resistance and light emitting diode string 6, silicon photocell group 4 is arranged on the light emission direction of light emitting diode string 6, silicon photocell group 4 is divided into many groups, being divided into many group silicon photocell groups 4 is electrically connected with the input of a plurality of DC/DC change-over circuits 2 respectively, the output of a plurality of DC/DC change-over circuits 2 is electrically connected with a plurality of DC/DC voltage output ends of housing 5, and a plurality of DC/DC voltage output end electricity altogether.Rectification circuit 3 is bridge rectifiers, and the light-emitting diode number of load circuit 8 serial connections of bridge rectifier is determined according to DC/DC output current and voltage.
As shown in Figure 3, rectification circuit 3 and DC/DC change-over circuit 2 are arranged in housing 5, the load circuit 8 of rectification circuit is serially connected with current-limiting resistance and light emitting diode string 6, silicon photocell group 4 is arranged on the light emission direction of light emitting diode string 6, silicon photocell group 4 is divided into many groups, being divided into many group silicon photocell groups 4 is electrically connected with the input of a plurality of DC/DC change-over circuits 2 respectively, the output of a plurality of DC/DC change-over circuits 2 is electrically connected with a plurality of DC/DC voltage output ends of housing 5, and a plurality of DC/DC voltage output end electricity are not altogether.Rectification circuit 3 is bridge rectifiers, and the light-emitting diode number of load circuit 8 serial connections of bridge rectifier is determined according to DC/DC output current and voltage.
Claims (5)
1. ac-dc converter circuit, it is characterized in that: rectification circuit and DC/DC change-over circuit are arranged in housing, the load circuit of rectification circuit is serially connected with current-limiting resistance R0 and light emitting diode string, the silicon photocell group is arranged on the light emission direction of light emitting diode string, the voltage output end of silicon photocell group is electrically connected with the input of DC/DC change-over circuit, and the output of DC/DC change-over circuit is electrically connected with the DC/DC voltage output end of housing.
2. a kind of ac-dc converter circuit according to claim 1 is characterized in that: the light emitting diode string number of the load circuit serial connection of described rectification circuit is according to the output current and the voltage parameter decision of DC/DC change-over circuit.
3. a kind of ac-dc converter circuit according to claim 1 is characterized in that: the rectifier diode of described rectification circuit is a light-emitting diode.
4. a kind of ac-dc converter circuit according to claim 1 is characterized in that: described rectification circuit is bridge rectifier or semibridge system rectification circuit.
5. a kind of ac-dc converter circuit according to claim 1, it is characterized in that: described silicon photocell component becomes many groups, being divided into many group silicon photocell groups is electrically connected with the input of a plurality of DC/DC change-over circuits respectively, the output of a plurality of DC/DC change-over circuits is electrically connected with a plurality of DC/DC voltage output ends of housing, and a plurality of DC/DC voltage output ends are not altogether or not altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206527491U CN201893716U (en) | 2010-12-10 | 2010-12-10 | Alternating current and direct current converting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206527491U CN201893716U (en) | 2010-12-10 | 2010-12-10 | Alternating current and direct current converting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893716U true CN201893716U (en) | 2011-07-06 |
Family
ID=44223186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206527491U Expired - Fee Related CN201893716U (en) | 2010-12-10 | 2010-12-10 | Alternating current and direct current converting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412741A (en) * | 2011-12-12 | 2012-04-11 | 西安福安创意咨询有限责任公司 | Isolated dual-power supply method for fluorescent lamp |
| CN102420536A (en) * | 2011-12-12 | 2012-04-18 | 西安福安创意咨询有限责任公司 | LED isolated-form double power supply method |
-
2010
- 2010-12-10 CN CN2010206527491U patent/CN201893716U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412741A (en) * | 2011-12-12 | 2012-04-11 | 西安福安创意咨询有限责任公司 | Isolated dual-power supply method for fluorescent lamp |
| CN102420536A (en) * | 2011-12-12 | 2012-04-18 | 西安福安创意咨询有限责任公司 | LED isolated-form double power supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201491339U (en) | LED driving circuit | |
| CN201893715U (en) | Low-current output type AC/DC conversion circuit | |
| CN201893718U (en) | Photoelectric isolated AC/DC voltage converting circuit | |
| CN109618468A (en) | A kind of LED lamp circuit with intelligent control function | |
| CN103152895A (en) | Circuit for driving LEDs (light-emitting diode) by directly using alternating current | |
| CN201378887Y (en) | Explosion-proof intrinsically-safe LED illuminating lamp driving circuit | |
| CN203162873U (en) | AC (alternating current) direct-drive current correcting circuit of LED lamp | |
| CN201893716U (en) | Alternating current and direct current converting circuit | |
| CN201639832U (en) | AC LED driving power-supply structure based on constant-current diode | |
| TWI568310B (en) | Light device and voltage reduction method thereof | |
| CN101997431A (en) | Design method of alternating current/direct current conversion circuit | |
| CN101997430A (en) | Design method of low-current output type AC/DC conversion circuit | |
| CN201904732U (en) | Optoelectronic isolation type voltage conversion circuit | |
| CN104125674A (en) | Light-emitting diode drive system | |
| CN201893717U (en) | Low-current output type and photoelectricity isolation type AC and DC voltage conversion circuit | |
| CN102791063A (en) | Intelligent LED module with function of automatic voltage regulation | |
| CN202165873U (en) | No-drive LED lamp | |
| CN201893719U (en) | High-current output and photoelectricity isolation AC and DC conversion power supply | |
| CN201903624U (en) | LED (light emitting diode) light source detection device | |
| CN201811989U (en) | Direct-current high-voltage indicating device | |
| CN102075100A (en) | Design method for photoelectric isolated type voltage transformation circuit | |
| Wang et al. | A simple current balancing method for multi-output flyback LED driver | |
| CN102005945A (en) | Method for designing photoelectric isolation type alternating-direct current voltage conversion circuit | |
| CN101997432A (en) | Design method for low current output type photoelectric isolating alternating current/direct current voltage conversion circuit | |
| CN102005946A (en) | Design method of high-current output photoelectric isolation AC/DC conversion power supply |
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: Xi'an Hengfei Electronic Technology Co., Ltd. Assignor: Xi'an Fuan Innovation Consultation Co., Ltd. Contract record no.: 2011610000122 Denomination of utility model: Design method of alternating current/direct current conversion circuit Granted publication date: 20110706 License type: Exclusive License Record date: 20110718 |
|
| 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: 20110706 Termination date: 20161210 |