CN202160318U - Light-emitting diode (LED) road lamp power supply with adjustable voltage and current - Google Patents
Light-emitting diode (LED) road lamp power supply with adjustable voltage and current Download PDFInfo
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- CN202160318U CN202160318U CN201120279364XU CN201120279364U CN202160318U CN 202160318 U CN202160318 U CN 202160318U CN 201120279364X U CN201120279364X U CN 201120279364XU CN 201120279364 U CN201120279364 U CN 201120279364U CN 202160318 U CN202160318 U CN 202160318U
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- 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
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The utility model discloses a light-emitting diode (LED) road lamp power supply with adjustable voltage and current, which relates to the technical field of LED lamps and comprises a driving circuit input end, an electro magnetic interference (EMI) circuit, a lightning preventing circuit, a rectifying filter circuit, a power factor correction (PFC) circuit, a logic link control (LLC) switch circuit, a PFC control circuit, an auxiliary virtual channel connection (VCC) circuit, an LLC soft switch control circuit, an overtemperature overloading protection circuit, an auxiliary rectifying filter circuit, an output circuit, a voltage current detecting circuit and an overvoltage overloading protection circuit. The output circuit is provided with an output circuit output port. The LED road lamp power supply further comprises a voltage adjusting circuit and a current adjusting circuit. The voltage adjusting circuit is provided with a voltage adjusting circuit input port, the current adjusting circuit is provided with a current adjusting circuit input port, an output port of the output circuit is electrically connected with an input port of the voltage adjusting circuit, and the output port of the output circuit is electrically connected with an input port of the current adjusting circuit. The LED road lamp power supply has the advantages that the current and voltage of the LED lamps can be adjusted and the LED road lamp power supply is adaptable to increase and decrease of the number of the LED lamps connected in series or in parallel.
Description
[technical field]
The utility model relates to the LED supply unit, relates in particular to a kind of electric current and voltage adjustable LED road lamp power supply device.
[background technology]
Under the serious all the more background of world's energy scarcity, LED is efficient with it, long-life, characteristics such as pollution-free, is regarded as the perfect light source of replacement conventional power source, city illumination wherein, and promptly street lamp is the important applied field of LED.When existing LED light fixture uses at the access power supply; Generally to insert some circuit; As: EMI circuit, current rectifying and wave filtering circuit, excess temperature overload protecting circuit, output circuit etc.; Each circuit all has corresponding function, to realize people the luminous requirement of LED light fixture is reached the protection to the LED light fixture.But existing circuit exists a problem, and promptly the electric current and voltage of LED light fixture all is a steady state value, can not in circuit, regulate; If in original circuit, connection in series-parallel adds one or more LED light fixtures, then the voltage of each LED light fixture, electric current and different when having only a LED light fixture before; Corresponding; The power of each LED light fixture also changes, and illumination effect also changes, increase and decrease that can not the series-parallel quantity of flexible adaptation LED light fixture.
[utility model content]
The purpose of the utility model is to overcome the prior art deficiency, provides a kind of electric current and voltage adjustable LED road lamp power supply.
The utility model is realized through following technical scheme: it comprises driving power input, EMI circuit, lightning prevention circuit, current rectifying and wave filtering circuit, pfc circuit, LLC soft switch circuit, PFC control circuit, auxiliary VCC circuit, the soft ON-OFF control circuit of LLC, excess temperature overload protecting circuit, secondary commutation filter circuit, output circuit, voltage and current detection circuit, overvoltage overload protecting circuit; Said output circuit is provided with the output circuit output port; It also comprises a voltage regulator circuit and a current regulating circuit; Said voltage regulator circuit is provided with the voltage regulator circuit input port; Said current regulating circuit is provided with the current regulating circuit input port; Said output circuit output port is electrically connected with the voltage regulator circuit input port, and said output circuit output port is electrically connected with the current regulating circuit input port.
Do further to set forth in the face of above technical scheme down:
Said driving power input, EMI circuit, lightning prevention circuit, current rectifying and wave filtering circuit, pfc circuit, LLC soft switch circuit, secondary commutation filter circuit and output circuit are electrically connected successively;
Said voltage and current detection circuit is provided with voltage and current detection circuit input port and voltage and current detection circuit output port; Said excess temperature overload protecting circuit is provided with excess temperature overload protecting circuit input port and excess temperature overload protecting circuit output port, and said LLC soft switch circuit is provided with LLC soft switch circuit input port and LLC soft switch circuit output port; Wherein, Said output circuit output port is electrically connected with the voltage and current detection circuit input port; Said voltage and current detection circuit output port is electrically connected with excess temperature overload protecting circuit input port, and said excess temperature overload protecting circuit output port is electrically connected with LLC soft switch circuit input port;
Said overvoltage overload protecting circuit is provided with overvoltage overload protecting circuit output port, and said overvoltage overload protecting circuit output port is electrically connected with excess temperature overload protecting circuit input port;
Said pfc circuit is provided with the pfc circuit input port; Said PFC control circuit is provided with PFC control circuit output port; Said auxiliary VCC circuit is provided with auxiliary VCC circuit output end mouth; The soft ON-OFF control circuit of said LLC is provided with the soft ON-OFF control circuit output port of LLC; Said PFC control circuit output port is electrically connected with the pfc circuit input port, and the soft ON-OFF control circuit output port of said LLC is electrically connected with the soft ON-OFF control circuit input port of LLC, and said auxiliary VCC circuit output end mouth is electrically connected with pfc circuit input port, LLC soft switch circuit input port respectively.
The beneficial effect of the utility model is: electric current, the voltage of one of which, LED light fixture can be regulated separately, thereby make the LED light fixture can both satisfy luminous requirement, can adapt to the increase and decrease of LED light fixture connection in series-parallel quantity; Two, simple in structure, it is convenient to realize, on the basis of original circuit, changes a little and can realize; Three, the utility model joint back is complete, and with various combination of circuits together, safeguard measure is perfect, has realized functional diversities, increases its useful life.
[description of drawings]
Fig. 1 is the utility model circuit flow chart.
Among the figure: EMI circuit 1; Lightning prevention circuit 2; Current rectifying and wave filtering circuit 3; Pfc circuit 4; LLC soft switch circuit 5; PFC control circuit 6; Auxiliary VCC circuit 7; The soft ON-OFF control circuit 8 of LLC; Excess temperature overload protecting circuit 9; Secondary commutation filter circuit 10; Output circuit 11; Voltage and current detection circuit 12; Overvoltage overload protecting circuit 13; Voltage regulator circuit 14; Current regulating circuit 15; Driving power input 16.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Said driving power input 16, EMI circuit 1, lightning prevention circuit 2, current rectifying and wave filtering circuit 3, pfc circuit 4, LLC soft switch circuit 5, secondary commutation filter circuit 10 and output circuit 11 are electrically connected successively.
Said output circuit 11 is provided with the output circuit output port; Said voltage regulator circuit 14 is provided with the voltage regulator circuit input port; Said current regulating circuit 15 is provided with the current regulating circuit input port; Said output circuit output port is electrically connected with the voltage regulator circuit input port, and said output circuit output port is electrically connected with the current regulating circuit input port.
Said voltage and current detection circuit 12 is provided with voltage and current detection circuit input port and voltage and current detection circuit output port; Said excess temperature overload protecting circuit 9 is provided with excess temperature overload protecting circuit input port and excess temperature overload protecting circuit output port, and said LLC soft switch circuit 5 is provided with LLC soft switch circuit input port and LLC soft switch circuit output port; Wherein, Said output circuit output port is electrically connected with the voltage and current detection circuit input port; Said voltage and current detection circuit output port is electrically connected with excess temperature overload protecting circuit input port, and said excess temperature overload protecting circuit output port is electrically connected with LLC soft switch circuit input port.
Said overvoltage overload protecting circuit 13 is provided with overvoltage overload protecting circuit output port, and said overvoltage overload protecting circuit output port is electrically connected with excess temperature overload protecting circuit input port.
Said pfc circuit 4 is provided with the pfc circuit input port; Said PFC control circuit 6 is provided with PFC control circuit output port; Said auxiliary VCC circuit 7 is provided with auxiliary VCC circuit output end mouth; The soft ON-OFF control circuit 8 of said LLC is provided with the soft ON-OFF control circuit output port of LLC; Said PFC control circuit output port is electrically connected with the pfc circuit input port, and the soft ON-OFF control circuit output port of said LLC is electrically connected with the soft ON-OFF control circuit input port of LLC, and said auxiliary VCC circuit output end mouth is electrically connected with pfc circuit input port, LLC soft switch circuit input port respectively.
Below we do the realization principle of this utility model and describe in further detail: among the figure, the output circuit output port is electrically connected with the voltage regulator circuit input port, and said output circuit output port is electrically connected with the current regulating circuit input port; In practice, the output circuit output port is electrically connected with the LED light fixture, according to the horse-power formula of light fixture: power P=voltage U * electric current I; When the quantity of the LED light fixture that is electrically connected when the output circuit output port changed, the power of the power of each LED light fixture LED light fixture when not changing was just different, and the brightness of LED lamp luminescence is also just different; In the utility model; The voltage regulator circuit 14, the current regulating circuit 15 that add can be regulated according to actual conditions, because power P=U*I; Therefore; Under different situations, adjustable voltage regulator circuit 14, current regulating circuit 15 change its voltage, electric current, thereby change power P.As: when needing integral LED light fixture light strong, regulation voltage regulating circuit 14, current regulating circuit 15 make voltage U, electric current I maximum simultaneously, and this moment, power P was maximum, and the LED lamp luminescence is the brightest; When needing LED light fixture light weak, regulation voltage regulating circuit 14, current regulating circuit 15 make voltage U, electric current I reduce, and this moment, power P also reduced thereupon, and the light that the LED light fixture sends dies down.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (5)
1. LED road lamp power supply that electric current and voltage is adjustable; It comprises: driving power input (16), EMI circuit (1), lightning prevention circuit (2), current rectifying and wave filtering circuit (3), pfc circuit (4), LLC soft switch circuit (5), PFC control circuit (6), auxiliary VCC circuit (7), the soft ON-OFF control circuit of LLC (8), excess temperature overload protecting circuit (9), secondary commutation filter circuit (10), output circuit (11), voltage and current detection circuit (12), overvoltage overload protecting circuit (13); Said output circuit (11) is provided with the output circuit output port; It is characterized in that: it also comprises a voltage regulator circuit (14) and a current regulating circuit (15); Said voltage regulator circuit (14) is provided with the voltage regulator circuit input port; Said current regulating circuit (15) is provided with the current regulating circuit input port; Said output circuit output port is electrically connected with the voltage regulator circuit input port, and said output circuit output port is electrically connected with the current regulating circuit input port.
2. the LED road lamp power supply adjustable according to the said electric current and voltage of claim 1 is characterized in that: said driving power input (16), EMI circuit (1), lightning prevention circuit (2), current rectifying and wave filtering circuit (3), pfc circuit (4), LLC soft switch circuit (5), secondary commutation filter circuit (10) and output circuit (11) are electrically connected successively.
3. the LED road lamp power supply adjustable according to the said electric current and voltage of claim 1; It is characterized in that: said voltage and current detection circuit (12) is provided with voltage and current detection circuit input port and voltage and current detection circuit output port; Said excess temperature overload protecting circuit (9) is provided with excess temperature overload protecting circuit input port and excess temperature overload protecting circuit output port, and said LLC soft switch circuit (5) is provided with LLC soft switch circuit input port and LLC soft switch circuit output port;
Wherein, Said output circuit output port is electrically connected with the voltage and current detection circuit input port; Said voltage and current detection circuit output port is electrically connected with excess temperature overload protecting circuit input port, and said excess temperature overload protecting circuit output port is electrically connected with LLC soft switch circuit input port.
4. the LED road lamp power supply adjustable according to the said electric current and voltage of claim 1; It is characterized in that: said overvoltage overload protecting circuit (13) is provided with overvoltage overload protecting circuit output port, and said overvoltage overload protecting circuit output port is electrically connected with excess temperature overload protecting circuit input port.
5. the LED road lamp power supply adjustable according to the said electric current and voltage of claim 1; It is characterized in that: said pfc circuit (4) is provided with the pfc circuit input port; Said PFC control circuit (6) is provided with PFC control circuit output port; Said auxiliary VCC circuit (7) is provided with auxiliary VCC circuit output end mouth; The soft ON-OFF control circuit of said LLC (8) is provided with the soft ON-OFF control circuit output port of LLC; Said PFC control circuit output port is electrically connected with the pfc circuit input port, and the soft ON-OFF control circuit output port of said LLC is electrically connected with the soft ON-OFF control circuit input port of LLC, and said auxiliary VCC circuit output end mouth is electrically connected with pfc circuit input port, LLC soft switch circuit input port respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120279364XU CN202160318U (en) | 2011-08-02 | 2011-08-02 | Light-emitting diode (LED) road lamp power supply with adjustable voltage and current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120279364XU CN202160318U (en) | 2011-08-02 | 2011-08-02 | Light-emitting diode (LED) road lamp power supply with adjustable voltage and current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202160318U true CN202160318U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120279364XU Expired - Fee Related CN202160318U (en) | 2011-08-02 | 2011-08-02 | Light-emitting diode (LED) road lamp power supply with adjustable voltage and current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202160318U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102958223A (en) * | 2011-08-19 | 2013-03-06 | 深圳美凯电子股份有限公司 | Soft switching LED power source adjustable in voltage and current |
| CN103780103A (en) * | 2012-10-17 | 2014-05-07 | 深圳美凯电子股份有限公司 | Highly-integrated green LED resonance power circuit |
| CN105188211A (en) * | 2015-09-02 | 2015-12-23 | 绍兴恒力特微电子有限公司 | Light-emitting diode (LED) circuit compatible with low-voltage and high-voltage input and constant-power output |
-
2011
- 2011-08-02 CN CN201120279364XU patent/CN202160318U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102958223A (en) * | 2011-08-19 | 2013-03-06 | 深圳美凯电子股份有限公司 | Soft switching LED power source adjustable in voltage and current |
| CN102958223B (en) * | 2011-08-19 | 2015-09-02 | 深圳美凯电子股份有限公司 | The Sofe Switch LED power that electric current and voltage is adjustable |
| CN103780103A (en) * | 2012-10-17 | 2014-05-07 | 深圳美凯电子股份有限公司 | Highly-integrated green LED resonance power circuit |
| CN103780103B (en) * | 2012-10-17 | 2017-04-26 | 深圳美凯电子股份有限公司 | Highly-integrated LED resonance power circuit |
| CN105188211A (en) * | 2015-09-02 | 2015-12-23 | 绍兴恒力特微电子有限公司 | Light-emitting diode (LED) circuit compatible with low-voltage and high-voltage input and constant-power output |
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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: 20120307 Termination date: 20180802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |