CN203136253U - High-light LED driving power supply - Google Patents
High-light LED driving power supply Download PDFInfo
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- CN203136253U CN203136253U CN 201320070875 CN201320070875U CN203136253U CN 203136253 U CN203136253 U CN 203136253U CN 201320070875 CN201320070875 CN 201320070875 CN 201320070875 U CN201320070875 U CN 201320070875U CN 203136253 U CN203136253 U CN 203136253U
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Abstract
The utility model relates to a high-light LED driving power supply comprising a capacitance-resistance voltage-reduction circuit, a full-wave rectification circuit, a load open-circuit protective resistor R4, a filtering capacitor C3 and at least two current-limiting resistors. One end of an AC power supply is connected with one end of the capacitance-resistance voltage-reduction circuit. The other end of the capacitance-resistance voltage-reduction circuit is connected with one input terminal of the full-wave rectification circuit. The other input terminal of the full-wave rectification circuit is connected with the other end of the AC power supply. Two DC output terminals of the full-wave rectification circuit are respectively connected with the load open-circuit protective resistor R4 and the filtering capacitor C3 in parallel. Two DC output terminals of the full-wave rectification circuit are respectively connected with the two current-limiting resistors in series. Because the two DC output terminals are respectively connected with the two current-limiting resistors in series, current is limited under a condition of a moment that the capacitor discharges. Four large resistors are taken to be a current-limiting protective barrier; no matter what current magnitude the barrier discharges, the four large resistors disperse in order to guarantee output current of the barrier to achieve a stable output work state. A lamp bead cannot result in electric bulb burning because of very heavy current and load. Driving is stable, a phenomenon that a whole lamp is burnt is effectively prevented; the driving power supply solves clients' problems at present; and requirements of clients, markets and industries and healthy development of the markets and the industries.
Description
Technical field
The utility model relates to a kind of drive circuit, particularly relates to a kind of high smooth LED driving power.
Background technology
Exploitation along with the LED electricity-saving lamp; its driving power arises at the historic moment; but the phenomenon of lamp pearl usually can appear burning in present driving power; this be because the high 2-3 of power supply of its output doubly; electrochemical discharge behind the switch moment electric capacity accumulate appears in this case; high electric current appears in the most obvious switch, even the lamp pearl can be burnt.Thereby influence the development of whole industry just because of this greatly.
Summary of the invention
The purpose of this utility model is exactly that defective at prior art provides a kind of high smooth LED driving power.
For achieving the above object, the utility model adopts following technical scheme:
A kind of high smooth LED driving power; comprise: a resistance-capacitance depressurization circuit; a full-wave rectifying circuit; a load open circuit protection resistance R 4; a filter capacitor C3; at least two current-limiting resistances; a wherein end of AC power is connected with a wherein end of resistance-capacitance depressurization circuit; the other end of resistance-capacitance depressurization circuit is connected with one of them input of full-wave rectifying circuit; another input of full-wave rectifying circuit is connected with the other end of AC power; two dc output ends of full-wave rectifying circuit are shunt load open-circuit-protection resistance R 4 and filter capacitor C3 respectively, and two dc output ends are connected in series current-limiting resistance respectively.
The two ends of described resistance-capacitance depressurization circuit two decompression capacitor C1, C2 respectively in parallel and a bleeder resistance R1.
Described two dc output ends are connected in series two current-limiting resistance R2, R3, R5, R6 respectively.
Owing to be connected in series two current-limiting resistances respectively at two dc output ends.Make under the electric smelting release situation of that electric moment and carry out current limliting, shield account by four big resistance as a current-limiting protection, no matter this barrier discharges many a spot of electric currents and reaches an output services state stably by the electric current that four big resistance go to disperse to guarantee its output, makes the lamp pearl can and not echo because of too high electric current and causes small electric bulb to burn; Drive and stablize, prevented that effectively the accident of the burned phenomenon of whole lamp from taking place, this driving power has solved the problem that present client exists, and has guaranteed demand and the healthy development of client, market and industry.
Description of drawings
Fig. 1 is one of them embodiment circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1; the utility model comprises: a resistance-capacitance depressurization circuit 1; a full-wave rectifying circuit 2; a load open circuit protection resistance R 4; a filter capacitor C3; four current-limiting resistance R2; R3; R5; R6; a wherein end of AC power is connected with a wherein end of resistance-capacitance depressurization circuit; the other end of resistance-capacitance depressurization circuit is connected with one of them input of full-wave rectifying circuit; another input of full-wave rectifying circuit is connected with the other end of AC power; two dc output ends of full-wave rectifying circuit are shunt load open-circuit-protection resistance R 4 and filter capacitor C3 respectively, and two dc output ends are connected in series current-limiting resistance respectively.
The two ends of described resistance-capacitance depressurization circuit two decompression capacitor C1, C2 respectively in parallel and a bleeder resistance R1.Described two dc output ends are connected in series two current-limiting resistance R2, R3, R5, R6 respectively.
Claims (3)
1. one kind high smooth LED driving power; it is characterized in that: comprising: a resistance-capacitance depressurization circuit (1); a full-wave rectifying circuit (2); a load open circuit protection resistance R 4; a filter capacitor C3; at least two current-limiting resistances; a wherein end of AC power is connected with a wherein end of resistance-capacitance depressurization circuit; the other end of resistance-capacitance depressurization circuit is connected with one of them input of full-wave rectifying circuit; another input of full-wave rectifying circuit is connected with the other end of AC power; two dc output ends of full-wave rectifying circuit are shunt load open-circuit-protection resistance R 4 and filter capacitor C3 respectively, and two dc output ends are connected in series current-limiting resistance respectively.
2. a kind of high smooth LED driving power according to claim 1 is characterized in that: the two ends of described resistance-capacitance depressurization circuit (1) two decompression capacitor C1, C2 respectively in parallel and a bleeder resistance R1.
3. a kind of high smooth LED driving power according to claim 1, it is characterized in that: described two dc output ends are connected in series two current-limiting resistance R2, R3, R5, R6 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070875 CN203136253U (en) | 2013-02-07 | 2013-02-07 | High-light LED driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070875 CN203136253U (en) | 2013-02-07 | 2013-02-07 | High-light LED driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203136253U true CN203136253U (en) | 2013-08-14 |
Family
ID=48944183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320070875 Expired - Fee Related CN203136253U (en) | 2013-02-07 | 2013-02-07 | High-light LED driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203136253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610135A (en) * | 2016-03-30 | 2016-05-25 | 天津瑞能电气有限公司 | Protection device applied to power system control power supply |
-
2013
- 2013-02-07 CN CN 201320070875 patent/CN203136253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610135A (en) * | 2016-03-30 | 2016-05-25 | 天津瑞能电气有限公司 | Protection device applied to power system control power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140207 |