CN106028571A - LED adjustable voltage-regulated driving power supply based on voltage detection circuit - Google Patents
LED adjustable voltage-regulated driving power supply based on voltage detection circuit Download PDFInfo
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- CN106028571A CN106028571A CN201610567214.6A CN201610567214A CN106028571A CN 106028571 A CN106028571 A CN 106028571A CN 201610567214 A CN201610567214 A CN 201610567214A CN 106028571 A CN106028571 A CN 106028571A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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Abstract
The invention discloses an LED adjustable voltage-regulated driving power supply based on a voltage detection circuit. The LED adjustable voltage-regulated driving power supply is characterized by mainly comprising a transformer T, a diode rectifier U1, a diode rectifier U2, a one-way thyristor VS, a voltage regulator diode D1, a polar capacitor C5, a base trigger circuit, a three-terminal voltage regulator circuit connected with the cathode of the one-way thyristor VS and the negative output end of the diode rectifier U2, and a voltage detection circuit connected in series between the base trigger circuit and the three-terminal voltage regulator circuit. A voltage regulator chip U3 adopted in the invention is an LM317 integrated chip, and the chip and a peripheral circuit are combined to realize suspended power supply. Moreover, voltage pre-adjustment can be realized through the thyristor, 6-12V adjustable voltage can be output, and thus, output of a wide-range adjustable voltage is ensured.
Description
Technical field
The present invention relates to electronic applications, specifically, be that a kind of LED based on voltage detecting circuit is adjustable surely
Pressure drives power supply.
Background technology
Under the background that global energy shortage, environmental requirement improve constantly, green is all greatly developed in countries in the world
Energy-saving illumination.LED illumination, as a kind of revolutionary energy-saving illumination technology, develops rapidly, Qi Zhongke
The brightness of dimming LED (Light Emitting Diode) can be widely used by people because it can be adjusted according to ambient brightness.But, existing
With the presence of the problem that LED regulated power supply output voltage adjustable extent is little, cause the change of dimming LED lamp brightness
Not quite, thus the requirement of people cannot be met.
Therefore it provides the LED regulated power supply that a kind of output voltage can regulate on a large scale is the task of top priority.
Summary of the invention
It is an object of the invention to overcome LED regulated power supply of the prior art to there is output voltage adjustable extent
Little defect, it is provided that the adjustable voltage stabilizing of a kind of based on voltage detecting circuit LED drive power supply.
The present invention is achieved through the following technical solutions: a kind of adjustable voltage stabilizing of LED based on voltage detecting circuit
Drive power supply, mainly by transformator T, diode rectifier U1, diode rectifier U2, unidirectional thyristor
VS, N pole cathode output end with diode rectifier U1 after resistance R1 is connected, P pole is through resistance R2
The Zener diode D1 that cathode output end with diode rectifier U1 is connected afterwards, positive pole is whole with diode
The cathode output end of stream device U2 is connected, negative pole is connected with the cathode output end of diode rectifier U2
Polar capacitor C5, respectively with N pole and the cathode output end of diode rectifier U1 of Zener diode D1
The base stage being connected triggers circuit, respectively with the negative electrode of unidirectional thyristor VS and bearing of diode rectifier U2
The three-terminal voltage-stabilizing circuit that pole outfan is connected, and be serially connected in base stage trigger circuit and three-terminal voltage-stabilizing circuit it
Between voltage detecting circuit composition；The Same Name of Ends of described transformator T secondary inductance coil L2 and diode rectification
One of them input of device U1 is connected, another input of its non-same polarity and diode rectifier U1
End is connected；The Same Name of Ends of described transformator T secondary inductance coil L3 is with diode rectifier U2 wherein
One input is connected, its non-same polarity is connected with another input of diode rectifier U2；Institute
The cathode output end of the anode and diode rectifier U2 of stating unidirectional thyristor VS is connected, its control end with
Base stage triggers circuit and is connected；The Same Name of Ends of described transformator T former limit inductance coil L1 and non-same polarity conduct
This adjustable voltage stabilizing drives the input of power supply；Described base stage triggers circuit and is connected with three-terminal voltage-stabilizing circuit.
Described voltage detecting circuit is by audion VT5, audion VT6, and audion VT7, positive pole is through resistance
After R17, the base stage with audion VT5 is connected, negative pole triggers, with base stage, the polar capacitor C9 that circuit is connected,
Negative pole negative pole with polar capacitor C9 after resistance R16 is connected, positive pole after resistance R18 with audion
Polar capacitor C10, the N pole that the emitter stage of VT5 is connected after resistance R20 with the transmitting of audion VT6
Diode D6, the P pole that pole is connected, P pole is connected with the positive pole of polar capacitor C9 is after resistance R21
Be connected with the emitter stage of audion VT7, N pole colelctor electrode with audion VT5 after resistance R19 is connected
The diode D7 connect, positive pole is connected with the P pole of diode D7, the colelctor electrode of negative pole and audion VT6
The polar capacitor C11 being connected, one end is connected with the positive pole of polar capacitor C11, the other end and audion
The adjustable resistance R22 that the base stage of VT7 is connected, positive pole is connected with the colelctor electrode of audion VT7, negative pole
The polar capacitor C12 being connected with the base stage of audion VT6, and the emitter stage of P pole and audion VT7
Be connected, diode D8 composition that N pole base stage with audion VT6 after resistance R23 is connected；Institute
State the N pole ground connection of diode D7；The minus earth of described polar capacitor C10；Described audion VT6's
Base stage is connected with the emitter stage of audion VT5；The emitter stage of described audion VT7 and three-terminal voltage-stabilizing circuit
It is connected.
Described base stage triggers circuit by field effect transistor MOS, audion VT1, audion VT2, positive pole and field
The source electrode of effect pipe MOS is connected, negative pole controls, with unidirectional thyristor VS's, the polar capacitor that end is connected
C2, negative pole is connected with the emitter stage of audion VT1, positive pole after resistance R4 with field effect transistor MOS
The polar capacitor C3 that is connected of grid, negative pole colelctor electrode with audion VT1 after resistance R5 is connected,
Polar capacitor C1, the N pole that positive pole is connected with the drain electrode of field effect transistor MOS after resistance R8 with audion
The diode that the base stage of VT2 is connected, P pole is connected with the drain electrode of field effect transistor MOS after resistance R3
D2, N pole is connected with the base stage of audion VT2, P pole after resistance R7 with the transmitting of audion VT1
The diode D3 that pole is connected, and negative pole is connected with the emitter stage of audion VT2, positive pole is through resistance
After R6, positive pole with polar capacitor C3 is connected the polar capacitor C4 composition connect；Described field effect transistor MOS
Drain electrode be connected with the N pole of Zener diode D1；The negative pole of described polar capacitor C1 and polar capacitor
The positive pole of C3 is connected；The positive pole of described polar capacitor C3 and the cathode output end phase of diode rectifier U1
Connect；The colelctor electrode of described audion VT2 is connected with the base stage of audion VT1, its base stage is electric with polarity
The negative pole holding C9 is connected；The positive pole of described polar capacitor C3 is connected with three-terminal voltage-stabilizing circuit.
Described three-terminal voltage-stabilizing circuit is by voltage stabilizing chip U3, audion VT3, audion VT4, one end and voltage stabilizing
The resistance R9, N that the IN pin of chip U3 is connected, the other end is connected with the emitter stage of audion VT3
Pole base stage with audion VT4 after resistance R13 is connected, P pole after resistance R11 with audion VT3
The diode D4 that is connected of base stage, negative pole P pole with diode D4 after adjustable resistance R12 is connected,
The polar capacitor C6 that positive pole colelctor electrode with audion VT3 after resistance R10 is connected, positive pole and audion
The polarity electricity that the colelctor electrode of VT4 is connected, negative pole negative pole with polar capacitor C6 after resistance R14 is connected
Hold C7, N pole be connected with the negative pole of polar capacitor C6, P pole after resistance R15 with voltage stabilizing chip U3's
The Zener diode D5 that OUT pin is connected, and positive pole is connected with the OUT pin of voltage stabilizing chip U3
Connect, polar capacitor C8 that negative pole is connected with the emitter stage of audion VT4 composition；Described voltage stabilizing chip U3
IN pin respectively with the negative electrode of unidirectional thyristor VS and the positive pole of polar capacitor C3 is connected, its GND
Pin is connected with the P pole of diode D4, its OUT pin shape extremely common with the N of Zener diode D5
Become the outfan of three-terminal voltage-stabilizing circuit；The OUT pin of described voltage stabilizing chip U3 and the transmitting of audion VT7
Pole is connected；The positive pole of described polar capacitor C6 is connected with the cathode output end of diode rectifier U2.
For the practical effect of the present invention, described voltage stabilizing chip U3 the most preferentially uses the integrated core of LM317
Sheet realizes.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the voltage stabilizing chip U3 of the present invention have employed the integrated chip of LM317 and realizes, and this chip is with peripheral
Circuit combines and achieves suspension power supply；And the present invention can realize pre-pressure regulation by IGCT, can export
The adjustable voltage of 6～12V, ensures that the present invention can export large-scale adjustable voltage.
(2) present invention can effectively reduce Leakage Current and the loss current of output electric current, and can suppress output
The unusual fluctuations of electric current, make output electric current keep stable, thus improve stablizing of the output electric current of the present invention
Property.
(3) present invention only needs the starting current of 0.5 μ A, i.e. reduces the power consumption of startup, thus improves this
The efficiency of invention.
(4) the output current error < 2%, thus improve voltage regulation accuracy of the present invention of the present invention.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the voltage detecting circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but the enforcement of the present invention
Mode is not limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by transformator T, diode rectifier U1, diode rectifier U2,
Unidirectional thyristor VS, N pole cathode output end with diode rectifier U1 after resistance R1 is connected, P
The Zener diode D1 that pole cathode output end with diode rectifier U1 after resistance R2 is connected, positive pole
Be connected with the cathode output end of diode rectifier U2, negative pole exports with the negative pole of diode rectifier U2
The polar capacitor C5 that is connected of end, respectively with the N pole of Zener diode D1 and diode rectifier U1
Base stage that cathode output end is connected triggers circuit, respectively with negative electrode and the diode rectification of unidirectional thyristor VS
The three-terminal voltage-stabilizing circuit that the cathode output end of device U2 is connected, and be serially connected in base stage trigger circuit and three ends steady
Voltage detecting circuit composition between volt circuit.
One of them of the Same Name of Ends of described transformator T secondary inductance coil L2 and diode rectifier U1 is defeated
Enter end be connected, its non-same polarity is connected with another input of diode rectifier U1；Described transformation
The Same Name of Ends of device T secondary inductance coil L3 is connected with one of them input of diode rectifier U2,
Its non-same polarity is connected with another input of diode rectifier U2；Described unidirectional thyristor VS's
Anode is connected with the cathode output end of diode rectifier U2, it controls end and is connected with base stage triggering circuit
Connect；Described base stage triggers circuit and is connected with three-terminal voltage-stabilizing circuit；Described transformator T former limit inductance coil L1
Same Name of Ends and non-same polarity drive the input of power supply as this adjustable voltage stabilizing and be connected with external power source.
Wherein, described base stage triggers circuit by field effect transistor MOS, audion VT1, audion VT2, electricity
Resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, polar capacitor C1, polarity
Electric capacity C2, polar capacitor C3, polar capacitor C4, diode D2, and diode D3 form.
During connection, the positive pole of polar capacitor C2 is connected with the source electrode of field effect transistor MOS, its negative pole and list
It is connected to the control end of IGCT VS.The negative pole of polar capacitor C3 is connected with the emitter stage of audion VT1
Connect, its positive pole grid with field effect transistor MOS after resistance R4 is connected.The negative pole of polar capacitor C1
After resistance R5 the colelctor electrode with audion VT1 be connected, the drain electrode phase of its positive pole and field effect transistor MOS
Connect.
Meanwhile, the N pole of diode D2 base stage with audion VT2 after resistance R8 be connected, its P
Pole drain electrode with field effect transistor MOS after resistance R3 is connected.The N pole of diode D3 and audion VT2
Base stage be connected, its P pole emitter stage with audion VT1 after resistance R7 is connected.Polar capacitor
The negative pole of C4 is connected with the emitter stage of audion VT2, its positive pole after resistance R6 with polar capacitor C3
Positive pole be connected and connect.
The drain electrode of described field effect transistor MOS is connected with the N pole of Zener diode D1；Described polar capacitor
The negative pole of C1 is connected with the positive pole of polar capacitor C3；The positive pole of described polar capacitor C3 and diode rectification
The cathode output end of device U1 is connected；The colelctor electrode of described audion VT2 and the base stage phase of audion VT1
Connect, its base stage is connected with the negative pole of polar capacitor C9；Positive pole and three ends of described polar capacitor C3 are steady
Volt circuit is connected.
Further, described three-terminal voltage-stabilizing circuit by voltage stabilizing chip U3, audion VT3, audion VT4,
Resistance R9, resistance R10, resistance R11, adjustable resistance R12, resistance R13, resistance R14, resistance R15,
Polar capacitor C6, polar capacitor C7, polar capacitor C8, diode D4, and Zener diode D5 group
Become.
During connection, one end of resistance R9 is connected with the IN pin of voltage stabilizing chip U3, its other end and three
The emitter stage of pole pipe VT3 is connected.The N pole of diode D4 after resistance R13 with the base of audion VT4
Pole is connected, its P pole base stage with audion VT3 after resistance R11 is connected.Polar capacitor C6's
Negative pole P pole with diode D4 after adjustable resistance R12 is connected, its positive pole after resistance R10 with three
The colelctor electrode of pole pipe VT3 is connected.
Meanwhile, the positive pole of polar capacitor C7 is connected with the colelctor electrode of audion VT4, its negative pole is through resistance
After R14, the negative pole with polar capacitor C6 is connected.The N pole of Zener diode D5 is with polar capacitor C6's
Negative pole is connected, its P pole OUT pin with voltage stabilizing chip U3 after resistance R15 is connected.Polarity electricity
The positive pole holding C8 is connected with the OUT pin of voltage stabilizing chip U3, the transmitting of its negative pole and audion VT4
Pole is connected.
The IN pin of described voltage stabilizing chip U3 respectively with the negative electrode of unidirectional thyristor VS and polar capacitor C3
Positive pole is connected, its GND pin is connected with the P pole of diode D4, its OUT pin and voltage stabilizing two
The N pole of pole pipe D5 is collectively forming the outfan of three-terminal voltage-stabilizing circuit；The OUT pipe of described voltage stabilizing chip U3
Foot is connected with the emitter stage of audion VT7；The positive pole of described polar capacitor C6 and diode rectifier U2
Cathode output end be connected.
As in figure 2 it is shown, described voltage detecting circuit is by audion VT5, audion VT6, audion VT7,
Resistance R16, resistance R17, resistance R18, resistance R19, resistance R20, resistance R21, adjustable resistance
R22, resistance R23, polar capacitor C9, polar capacitor C10, polar capacitor C11, polar capacitor C12,
Diode D6, diode D7, and diode D8 form.
During connection, the positive pole of polar capacitor C9 base stage with audion VT5 after resistance R17 is connected,
Its negative pole triggers circuit with base stage and is connected.The negative pole of polar capacitor C10 after resistance R16 with polar capacitor
The negative pole of C9 is connected, its positive pole emitter stage with audion VT5 after resistance R18 is connected.Diode
The N pole of D6 emitter stage with audion VT6 after resistance R20 is connected, its P pole and polar capacitor C9
Positive pole be connected.The P pole of diode D7 emitter stage with audion VT7 after resistance R21 is connected,
Its N pole colelctor electrode with audion VT5 after resistance R19 is connected.
Meanwhile, the positive pole of polar capacitor C11 be connected with the P pole of diode D7, its negative pole and audion
The colelctor electrode of VT6 is connected.One end of adjustable resistance R22 is connected with the positive pole of polar capacitor C11, it
The other end is connected with the base stage of audion VT7.The positive pole of polar capacitor C12 and the current collection of audion VT7
Pole is connected, its negative pole is connected with the base stage of audion VT6.The P pole of diode D8 and audion VT7
Emitter stage be connected, its N pole base stage with audion VT6 after resistance R23 is connected.
The N pole ground connection of described diode D7；The minus earth of described polar capacitor C10；Described audion
The base stage of VT6 is connected with the emitter stage of audion VT5；Emitter stage and three ends of described audion VT7 are steady
Volt circuit is connected.
During enforcement, the voltage stabilizing chip U3 of the present invention have employed the integrated chip of LM317 and realizes, this chip with
Peripheral circuit combines and achieves suspension power supply；And the present invention can realize pre-pressure regulation by IGCT, can be defeated
Go out the adjustable voltage of 6～12V, ensure that the present invention can export large-scale adjustable voltage.Energy of the present invention
Effectively reduce Leakage Current and the loss current of output electric current, and can suppress to export the unusual fluctuations of electric current,
Make output electric current keep stable, thus improve the stability of the output electric current of the present invention.
Meanwhile, the present invention only needs the starting current of 0.5 μ A, i.e. reduces the power consumption of startup, thus improves
The efficiency of the present invention.The output current error of the present invention < 2%, thus improve voltage regulation accuracy of the present invention.
According to above-described embodiment, can well realize the present invention.
Claims (5)
1. the adjustable voltage stabilizing of LED based on voltage detecting circuit drives power supply, it is characterised in that main
By transformator T, diode rectifier U1, diode rectifier U2, unidirectional thyristor VS, N pole is through electricity
Resistance R1 after be connected with the cathode output end of diode rectifier U1, P pole whole with diode after resistance R2
The Zener diode D1 that the cathode output end of stream device U1 is connected, positive pole and the positive pole of diode rectifier U2
The polar capacitor C5 that outfan is connected, negative pole is connected with the cathode output end of diode rectifier U2,
The base stage being connected with the N pole of Zener diode D1 and the cathode output end of diode rectifier U1 respectively is touched
Power Generation Road, is connected with the negative electrode of unidirectional thyristor VS and the cathode output end of diode rectifier U2 respectively
Three-terminal voltage-stabilizing circuit, and be serially connected in the voltage detecting electricity that base stage triggers between circuit and three-terminal voltage-stabilizing circuit
Road forms；Wherein the one of the Same Name of Ends of described transformator T secondary inductance coil L2 and diode rectifier U1
Individual input is connected, its non-same polarity is connected with another input of diode rectifier U1；Described
The Same Name of Ends of transformator T secondary inductance coil L3 is connected with one of them input of diode rectifier U2
Connect, its non-same polarity is connected with another input of diode rectifier U2；Described unidirectional thyristor
The anode of VS is connected with the cathode output end of diode rectifier U2, it controls end and triggers circuit with base stage
It is connected；Same Name of Ends and the non-same polarity of described transformator T former limit inductance coil L1 drive as this adjustable voltage stabilizing
The input in galvanic electricity source；Described base stage triggers circuit and is connected with three-terminal voltage-stabilizing circuit.
A kind of adjustable voltage stabilizing of LED based on voltage detecting circuit the most according to claim 1 drives electricity
Source, it is characterised in that described voltage detecting circuit by audion VT5, audion VT6, audion VT7,
Positive pole base stage with audion VT5 after resistance R17 is connected, negative pole triggers what circuit was connected with base stage
Polar capacitor C9, negative pole negative pole with polar capacitor C9 after resistance R16 is connected, positive pole is through resistance R18
Polar capacitor C10, the N pole that emitter stage with audion VT5 is connected afterwards after resistance R20 with audion
Diode D6, the P pole that the emitter stage of VT6 is connected, P pole is connected with the positive pole of polar capacitor C9 is through electricity
Resistance R21 after be connected with the emitter stage of audion VT7, N pole after resistance R19 with audion VT5's
The diode D7 that colelctor electrode is connected, positive pole is connected with the P pole of diode D7, negative pole and audion VT6
The polar capacitor C11 that is connected of colelctor electrode, one end is connected with the positive pole of polar capacitor C11, the other end
The adjustable resistance R22 being connected with the base stage of audion VT7, positive pole is connected with the colelctor electrode of audion VT7
Connect, polar capacitor C12 that negative pole is connected with the base stage of audion VT6, and P pole and audion VT7
The diode D8 that emitter stage is connected, N pole base stage with audion VT6 after resistance R23 is connected
Composition；The N pole ground connection of described diode D7；The minus earth of described polar capacitor C10；Described three poles
The base stage of pipe VT6 is connected with the emitter stage of audion VT5；The emitter stage and three of described audion VT7
End mu balanced circuit is connected.
A kind of adjustable voltage stabilizing of LED based on voltage detecting circuit the most according to claim 2 drives electricity
Source, it is characterised in that described base stage triggers circuit by field effect transistor MOS, audion VT1, audion
VT2, positive pole is connected with the source electrode of field effect transistor MOS, the control end phase of negative pole and unidirectional thyristor VS
Connect polar capacitor C2, negative pole is connected with the emitter stage of audion VT1, positive pole after resistance R4 and
The polar capacitor C3 that the grid of field effect transistor MOS is connected, negative pole after resistance R5 with audion VT1
Polar capacitor C1, the N pole warp that colelctor electrode is connected, positive pole is connected with the drain electrode of field effect transistor MOS
After resistance R8 the base stage with audion VT2 be connected, P pole after resistance R3 with field effect transistor MOS
Diode D2, the N pole that is connected of drain electrode is connected with the base stage of audion VT2, P pole is after resistance R7
The diode D3 being connected with the emitter stage of audion VT1, and the emitter stage of negative pole and audion VT2
Be connected, positive pole positive pole with polar capacitor C3 after resistance R6 is connected the polar capacitor C4 composition connect；
The drain electrode of described field effect transistor MOS is connected with the N pole of Zener diode D1；Described polar capacitor C1
Negative pole be connected with the positive pole of polar capacitor C3；The positive pole of described polar capacitor C3 and diode rectifier
The cathode output end of U1 is connected；The colelctor electrode of described audion VT2 is connected with the base stage of audion VT1
Connect, its base stage is connected with the negative pole of polar capacitor C9；The positive pole of described polar capacitor C3 and three-terminal voltage-stabilizing
Circuit is connected.
A kind of adjustable voltage stabilizing of LED based on voltage detecting circuit the most according to claim 3 drives electricity
Source, it is characterised in that described three-terminal voltage-stabilizing circuit by voltage stabilizing chip U3, audion VT3, audion VT4,
One end is connected with the IN pin of voltage stabilizing chip U3, the other end is connected with the emitter stage of audion VT3
Resistance R9, N pole base stage with audion VT4 after resistance R13 is connected, P pole after resistance R11 with
The diode D4 that the base stage of audion VT3 is connected, negative pole after adjustable resistance R12 with diode D4's
The polar capacitor C6 that P pole is connected, positive pole colelctor electrode with audion VT3 after resistance R10 is connected,
Positive pole is connected with the colelctor electrode of audion VT4, negative pole after resistance R14 with the negative pole of polar capacitor C6
Polar capacitor C7, the N pole being connected is connected with the negative pole of polar capacitor C6, P pole is after resistance R15
The Zener diode D5 being connected with the OUT pin of voltage stabilizing chip U3, and positive pole and voltage stabilizing chip U3
The polar capacitor C8 that OUT pin is connected, negative pole is connected with the emitter stage of audion VT4 composition；
The IN pin of described voltage stabilizing chip U3 respectively with negative electrode and the positive pole of polar capacitor C3 of unidirectional thyristor VS
Be connected, its GND pin is connected with the P pole of diode D4, its OUT pin and Zener diode
The N pole of D5 is collectively forming the outfan of three-terminal voltage-stabilizing circuit；The OUT pin of described voltage stabilizing chip U3 with
The emitter stage of audion VT7 is connected；The positive pole of described polar capacitor C6 is negative with diode rectifier U2's
Pole outfan is connected.
A kind of adjustable voltage stabilizing of LED based on voltage detecting circuit the most according to claim 4 drives electricity
Source, it is characterised in that described voltage stabilizing chip U3 is the integrated chip of LM317.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567214.6A CN106028571A (en) | 2016-07-18 | 2016-07-18 | LED adjustable voltage-regulated driving power supply based on voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567214.6A CN106028571A (en) | 2016-07-18 | 2016-07-18 | LED adjustable voltage-regulated driving power supply based on voltage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106028571A true CN106028571A (en) | 2016-10-12 |
Family
ID=57118275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610567214.6A Pending CN106028571A (en) | 2016-07-18 | 2016-07-18 | LED adjustable voltage-regulated driving power supply based on voltage detection circuit |
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| Country | Link |
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| CN (1) | CN106028571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846759A (en) * | 2017-12-12 | 2018-03-27 | 上海灿瑞科技股份有限公司 | A kind of LED drive chip |
-
2016
- 2016-07-18 CN CN201610567214.6A patent/CN106028571A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846759A (en) * | 2017-12-12 | 2018-03-27 | 上海灿瑞科技股份有限公司 | A kind of LED drive chip |
| CN107846759B (en) * | 2017-12-12 | 2024-01-05 | 上海灿瑞科技股份有限公司 | LED driving chip |
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