CN204578814U - A kind of New LED driving power - Google Patents
A kind of New LED driving power Download PDFInfo
- Publication number
- CN204578814U CN204578814U CN201520065053.1U CN201520065053U CN204578814U CN 204578814 U CN204578814 U CN 204578814U CN 201520065053 U CN201520065053 U CN 201520065053U CN 204578814 U CN204578814 U CN 204578814U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- control circuit
- pfc
- frequency
- 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
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model relates to a kind of New LED driving power, comprise the AC input circuit connected successively, Anti-surging thunder strike circuit, first EMI filter circuit, industrial frequency rectifying circuit, DC/AC high-frequency inverter circuit, high-frequency rectification circuit, LC filter circuit, second EMI filter circuit and low ripple DC output circuit, DC/AC high-frequency inverter circuit is also connected with detection control circuit, detection control circuit is connected with PFC and pwm control circuit, basis is novel is monitored the Rectified alternating current corrugating after industrial frequency rectifying by detection control circuit, and the control signal superposing a PFC is to pwm control circuit, realize same drive singal simultaneously to the closed loop feedback control of output voltage/electric current and the Corrective control to power factor, remove the high-voltage electrolytic capacitor affecting whole power source life simultaneously, and carry out the correction of power factor, promote stability and the life-span of LED drive power itself.
Description
Technical field
The utility model relates to a kind of New LED driving power, belongs to electronic technology field.
Background technology
The useful life of LED drive power is special distinct issues always, because LED drive power is driving LED lamp, and LED is generally acknowledged long-life light source, so how to ensure that the luminescent lifetime that can reach LED itself useful life of its driving power is just particularly important, otherwise, lamp or good, but driving power has been broken, long-life of that LED that is also just far from being and energy-efficient.
Common LED drive power adopts flyback substantially, the topological structures such as normal shock, specific PFC control chip is adopted to carry out power factor correction to rectification circuit, and then carry out driven MOS pipe by PWM chip, reach high-frequency inversion, finally inversion low tension is out carried out the low ripple DC power supply required for filter rectification acquisition driving LED lamp, its general principle as shown in Figure 1, can find from Fig. 1, existing current techique is separated with pwm circuit by PFC, work alone, dc-link capacitance must be used and carry out energy storage, and because with larger ripple after rectification, so dc-link capacitance needs the high-voltage electrolytic capacitor adopting high frequency low-resistance, two drawbacks of existing current techique as can be seen here: 1, pfc circuit is separated with pwm circuit, increase control assembly cost (PF control chip, PF transformer, metal-oxide-semiconductor, heavy-duty diode etc.), 2, required high voltage direct current electrolysis electric capacity directly affects the useful life of power supply itself, because the life-span of electrochemical capacitor is subject to the impact such as temperature, harmonic wave, along with the use of power supply, electrolyte temperature influence can slowly dry up, when acquiring a certain degree, electric capacity just reaches normal useful life, and problem has been there is due to energy storage after electrochemical capacitor lost efficacy, whole power supply is with regard to cisco unity malfunction, and the life-span of power supply has also arrived.On the other hand, because LED drive power General Requirements volume is little, be arranged in confined space more, and electrochemical capacitor is all near the heater element such as metal-oxide-semiconductor and transformer, cause the temperature of electrochemical capacitor all higher, and high temperature is the biggest factor affecting the electric capacity life-span, but this problem cannot be avoided and solve in general design.
Utility model content
The technical problems to be solved in the utility model is: for overcoming the problems referred to above, provides a kind of and promotes the stability of LED drive power itself and the New LED driving power in life-span.
The utility model solves the technical scheme that its technical problem adopts:
A kind of New LED driving power, comprise the AC input circuit connected successively, Anti-surging thunder strike circuit, first EMI filter circuit, industrial frequency rectifying circuit, DC/AC high-frequency inverter circuit, high-frequency rectification circuit, LC filter circuit, second EMI filter circuit and low ripple DC output circuit, described DC/AC high-frequency inverter circuit is also connected with detection control circuit, described detection control circuit is connected with PFC and pwm control circuit, described PFC and pwm control circuit are connected to input protection loop, output protection loop and feedback regulation loop, described PFC and pwm control circuit are also connected between described industrial frequency rectifying circuit and DC/AC high-frequency inverter circuit, described feedback regulation loop is also connected with described low ripple DC output circuit.
Preferably, described detection control circuit comprises resistance R4, resistance R5, there is polar capacitor C11, electric capacity C12, resistance R11, resistance R10 and triode Q2, described resistance R4 is connected with one end of described resistance R5, the other end of described resistance R5 has the positive pole of polar capacitor C11 to be connected with described, the described minus earth having polar capacitor C11, one end of described resistance R11 is connected to described resistance R5 and has between polar capacitor C11, the other end of described resistance R11 is connected with the base stage of described triode Q2, the base stage of described triode is also connected with resistance R10 and electric capacity C12 respectively.
Preferably, described PFC and pwm control circuit comprise FAN6300H cake core.
The beneficial effects of the utility model are: the utility model is monitored the Rectified alternating current corrugating after industrial frequency rectifying by detection control circuit, and superpose a PFC control signal to pwm control circuit, thus realize same drive singal simultaneously to a closed loop feedback control of output voltage/electric current and the Corrective control to power factor, remove the high-voltage electrolytic capacitor affecting whole power source life simultaneously.Thus promote stability and the life-span of LED drive power itself, also can reduce the cost of product simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structured flowchart of prior art;
Fig. 2 is the structured flowchart of the utility model embodiment;
Fig. 3 is the circuit diagram of the utility model embodiment.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Described in the utility model a kind of New LED driving power as shown in Figure 2, comprise the AC input circuit connected successively, Anti-surging thunder strike circuit, first EMI filter circuit, industrial frequency rectifying circuit, DC/AC high-frequency inverter circuit, high-frequency rectification circuit, LC filter circuit, second EMI filter circuit and low ripple DC output circuit, it is characterized in that, described DC/AC high-frequency inverter circuit is also connected with detection control circuit, described detection control circuit is connected with PFC and pwm control circuit, described PFC and pwm control circuit are connected to input protection loop, output protection loop and feedback regulation loop, described PFC and pwm control circuit are also connected between described industrial frequency rectifying circuit and DC/AC high-frequency inverter circuit, described feedback regulation loop is also connected with described low ripple DC output circuit, basis is novel is monitored the pulsating dc voltage after industrial frequency rectifying by detection control circuit, and superpose a control signal to PFC and pwm control circuit, thus realize a closed loop feedback control of output voltage/electric current and the Corrective control to power factor, therefore the high-voltage electrolytic capacitor affecting whole power source life is removed.Thus promote stability and the life-span of LED drive power itself, also can reduce the cost of product simultaneously.
In preferred embodiments, as shown in Figure 3, described detection control circuit comprises resistance R4, resistance R5, there is polar capacitor C11, electric capacity C12, resistance R11, resistance R10 and triode Q2, described resistance R4 is connected with one end of described resistance R5, the other end of described resistance R5 has the positive pole of polar capacitor C11 to be connected with described, the described minus earth having polar capacitor C11, one end of described resistance R11 is connected to described resistance R5 and has between polar capacitor C11, the other end of described resistance R11 is connected with the base stage of described triode Q2, the base stage of described triode is also connected with resistance R10 and electric capacity C12 respectively.
In preferred embodiments, as shown in Figure 3, described PFC and pwm control circuit comprise FAN6300H cake core, the output pin P5 output pwm signal of described FAN6300H cake core, carry out DC/AC inversion work by resistance R6 rear drive field effect transistor Q1, key is that we introduce described detection control circuit.Main thought of the present invention just here, by resistance R4, resistance R5, electric capacity C11 and resistance R11 loop, the pulsating dc voltage after industrial frequency rectifying is monitored, and superpose a control signal to the PWM drive singal of original P5 output by triode Q2, thus take part in the break-make of described field effect transistor Q1, by carrying out satisfied two demands for control to the control of field effect transistor Q1, to a closed loop feedback control of output voltage/electric current and the Corrective control to power factor.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. a New LED driving power, comprise the AC input circuit connected successively, Anti-surging thunder strike circuit, first EMI filter circuit, industrial frequency rectifying circuit, DC/AC high-frequency inverter circuit, high-frequency rectification circuit, LC filter circuit, second EMI filter circuit and low ripple DC output circuit, it is characterized in that, described DC/AC high-frequency inverter circuit is also connected with detection control circuit, described detection control circuit is connected with PFC and pwm control circuit, described PFC and pwm control circuit are connected to input protection loop, output protection loop and feedback regulation loop, described PFC and pwm control circuit are also connected between described industrial frequency rectifying circuit and DC/AC high-frequency inverter circuit, described feedback regulation loop is also connected with described low ripple DC output circuit.
2. New LED driving power as claimed in claim 1, it is characterized in that, described detection control circuit comprises resistance R4, resistance R5, there is polar capacitor C11, electric capacity C12, resistance R11, resistance R10 and triode Q2, described resistance R4 is connected with one end of described resistance R5, the other end of described resistance R5 has the positive pole of polar capacitor C11 to be connected with described, the described minus earth having polar capacitor C11, one end of described resistance R11 is connected to described resistance R5 and has between polar capacitor C11, the other end of described resistance R11 is connected with the base stage of described triode Q2, the base stage of described triode is also connected with resistance R10 and electric capacity C12 respectively.
3. New LED driving power as claimed in claim 2, it is characterized in that, described PFC and pwm control circuit comprise FAN6300H cake core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065053.1U CN204578814U (en) | 2015-01-28 | 2015-01-28 | A kind of New LED driving power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065053.1U CN204578814U (en) | 2015-01-28 | 2015-01-28 | A kind of New LED driving power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204578814U true CN204578814U (en) | 2015-08-19 |
Family
ID=53871398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520065053.1U Expired - Fee Related CN204578814U (en) | 2015-01-28 | 2015-01-28 | A kind of New LED driving power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204578814U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792444A (en) * | 2016-05-06 | 2016-07-20 | 深圳市华星光电技术有限公司 | Led drive circuit |
| CN109951098A (en) * | 2018-10-18 | 2019-06-28 | 广西师范大学 | One kind quickly isolating breaker and its control algolithm |
| CN110493922A (en) * | 2019-08-28 | 2019-11-22 | 厦门亚锝电子科技有限公司 | A kind of LED drive circuit of the low ripple without stroboscopic |
-
2015
- 2015-01-28 CN CN201520065053.1U patent/CN204578814U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792444A (en) * | 2016-05-06 | 2016-07-20 | 深圳市华星光电技术有限公司 | Led drive circuit |
| CN105792444B (en) * | 2016-05-06 | 2018-06-15 | 深圳市华星光电技术有限公司 | Led drive circuit |
| CN109951098A (en) * | 2018-10-18 | 2019-06-28 | 广西师范大学 | One kind quickly isolating breaker and its control algolithm |
| CN109951098B (en) * | 2018-10-18 | 2024-03-15 | 阿斯通(山东)开关有限公司 | Quick isolation circuit breaker and control algorithm thereof |
| CN110493922A (en) * | 2019-08-28 | 2019-11-22 | 厦门亚锝电子科技有限公司 | A kind of LED drive circuit of the low ripple without stroboscopic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202005042U (en) | Novel light-emitting diode (LED) drive circuit with high power factor | |
| CN103066873B (en) | Novel voltage reduction type bridgeless Cuk power factor correction (PFC) circuit | |
| CN101742784B (en) | LED lamp and drive circuit thereof | |
| CN201846506U (en) | High efficiency light-emitting diode (LED) circuit driven by constant current source | |
| CN201839208U (en) | PFC/PWM two-in-one switching power supply circuit | |
| CN102026447A (en) | Daylight lamp constant current driving method and driving circuit thereof | |
| CN204578814U (en) | A kind of New LED driving power | |
| CN201860484U (en) | Driving power supply of LED lamp | |
| CN204068745U (en) | A kind of transformer leakage inductance Energy harvesting type flyback sourse system | |
| CN201904960U (en) | LED drive circuit capable of improving quality of LED drive circuit | |
| CN204013236U (en) | A kind of DC power supply circuit | |
| CN203181299U (en) | Constant-current driving circuit structure for small-power lamps | |
| CN102438376B (en) | LED (Light Emitting Diode) constant-current driving power circuit | |
| CN104507238A (en) | LED (light emitting diode) driving power supply without electrolytic capacitor | |
| CN203504839U (en) | LED lamp driving power supply adopting primary detection and regulation | |
| CN206575633U (en) | A kind of long-life LED drive power based on ripple compensation | |
| CN204350389U (en) | A kind of LED drive power circuit | |
| CN209001824U (en) | The passive power factor correcting circuit of LED illumination power supply | |
| CN203057655U (en) | LED lamp driving power supply with low cost and high performance | |
| CN203104850U (en) | Light emitting diode (LED) lamp drive power supply adopting pulse width modulation (PWM) dimming | |
| CN202059319U (en) | Power supply low pass filter circuit | |
| CN202799280U (en) | Driving power supply without electrolytic capacitor | |
| CN205305192U (en) | Energy -conserving circuit of new efficiency standard of ultralow stand -by power consumption of high power factor | |
| CN201435861Y (en) | Electronic ballast with auxiliary EMC type passive power factor correction | |
| CN204291544U (en) | A kind of efficient full-bridge mode high-power HID electric ballast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: SUZHOU QUANNENG ELECTRONIC TECHNOLOGY Co.,Ltd. Document name: Notification to Go Through Formalities of Registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: SUZHOU QUANNENG ELECTRONIC TECHNOLOGY Co.,Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: SUZHOU QUANNENG ELECTRONIC TECHNOLOGY Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |