CN220798587U - Linear constant current power supply control circuit - Google Patents
Linear constant current power supply control circuit Download PDFInfo
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- CN220798587U CN220798587U CN202322471278.4U CN202322471278U CN220798587U CN 220798587 U CN220798587 U CN 220798587U CN 202322471278 U CN202322471278 U CN 202322471278U CN 220798587 U CN220798587 U CN 220798587U
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- 239000011324 bead Substances 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241001465382 Physalis alkekengi Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a linear constant current power supply control circuit, which relates to the technical field of LED lighting circuits, and comprises: the input circuit is used for converting input alternating current into direct current and providing safety protection; the filtering constant current circuit is used for filtering the input direct current and outputting constant current to be supplied to the double-color temperature lamp bead load circuit; the double-color temperature lamp bead load circuit is used for working and lighting of the double-color temperature lamp beads; the 5V auxiliary power supply circuit is used for supplying power to the control interface circuit through 5V direct-current voltage; the control interface circuit is used for receiving the control signals of the intelligent wireless module/sensor, and has the beneficial effects that: the utility model receives the output signal of the intelligent wireless module/sensor, so that the linear power lamp is more intelligent and convenient to adjust; the circuit is reliable, low in cost and has market competitiveness; the circuit elements are few, and the LED lamp can be placed on a PCB together with the lamp beads to be made into a DOB scheme, so that the height and the volume of the power supply are reduced.
Description
Technical Field
The utility model relates to the technical field of LED lighting circuits, in particular to a linear constant current power supply control circuit.
Background
The linear constant current power supply in the lighting industry is commonly applied, especially on low-power (< 25W) lamps. The linear power supply has the advantages of low cost, small volume and thin thickness, and meets the requirements of low price and ultra-thin appearance of low-power lamps in the market.
With the continuous emergence of intelligent lamps and lanterns, can receive intelligent wireless module/sensor control on linear power supply lamps and lanterns and make linear power supply lamps and lanterns more intelligent, conveniently adjust.
Disclosure of Invention
The utility model aims to provide a linear constant current power supply control circuit to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a linear constant current power supply control circuit, comprising:
the input circuit is used for converting input alternating current into direct current and providing safety protection;
the filtering constant current circuit is used for filtering the input direct current and outputting constant current to be supplied to the double-color temperature lamp bead load circuit;
the double-color temperature lamp bead load circuit is used for working and lighting of the double-color temperature lamp beads;
the 5V auxiliary power supply circuit is used for supplying power to the control interface circuit through 5V direct-current voltage;
the control interface circuit is used for receiving the control signal of the intelligent wireless module/sensor and outputting the control signal to the control circuit;
the control circuit is used for receiving the control signal to control the working condition of the double-color temperature lamp bead load circuit;
the input circuit is connected with the filtering constant current circuit and the 5V auxiliary power supply circuit, the filtering constant current circuit is connected with the double-color-temperature lamp bead load circuit and the control circuit, the 5V auxiliary power supply circuit is connected with the control interface circuit, the control interface circuit is connected with the control circuit, and the control circuit is connected with the double-color-temperature load power supply circuit.
As still further aspects of the utility model: the filter constant current circuit comprises an integrated circuit U1, the model of the integrated circuit U1 is OB5656, a pin 1 of the integrated circuit U1 is connected with the cathode of a diode D1, one end of a capacitor EC1, one end of a resistor R1 and a bicolor temperature lamp bead load circuit, the anode of the diode D1 is connected with an input circuit, a pin 2 of the integrated circuit U1 is connected with the input circuit through a resistor R2, a pin 4 of the integrated circuit U1 is grounded through a resistor R7, a pin 5 of the integrated circuit U1 is grounded, a pin 6 of the integrated circuit U1 is connected with one end of a resistor R3 and one end of a resistor R4, the other end of the resistor R3 is connected with the other end of the resistor R4 and a control circuit, the pin 7 of the integrated circuit U1 is connected with one end of a resistor R5 and one end of a resistor R6, the other end of the resistor R5 is grounded, and the other end of the resistor R6 is grounded, and a pin 8 of the integrated circuit U1 is connected with the cathode of a protection tube TVS1, the other end of the resistor EC1 and the other end of the resistor R1 are grounded.
As still further aspects of the utility model: the double-color temperature lamp bead load circuit comprises a warm light string and a cold light string, wherein the warm light string and the cold light string are connected in parallel, the warm light string is formed by connecting a plurality of warm light LEDs in series, and the cold light string is formed by connecting a plurality of cold light LEDs in series.
As still further aspects of the utility model: the control interface circuit comprises an interface CN1, the interface CN1 is externally connected with an intelligent wireless module/sensor, a No. 1 pin of the interface CN1 is connected with a 5V auxiliary power supply circuit, a No. 2 pin, a No. 3 pin and a No. 4 pin of the interface CN1 are connected with the control circuit, and a No. 5 pin of the interface CN1 is grounded.
As still further aspects of the utility model: the control circuit comprises an MOS tube Q1, an MOS tube Q2, an MOS tube Q3, an MOS tube Q4 and an MOS tube Q5, wherein the G electrode of the MOS tube Q1 is connected with the control interface circuit through a resistor R10, the S electrode of the MOS tube Q1 is grounded, and the D electrode of the MOS tube Q1 is connected with the filtering constant current circuit; the G pole of the MOS tube Q2 is connected with the control interface circuit through a resistor R12, the S pole of the MOS tube Q2 is grounded, the D pole of the MOS tube Q2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with the anode of a diode ZD1, one end of a resistor R11 and the G pole of the MOS tube Q3, the cathode of the diode ZD1 is connected with the other end of the resistor R11, the S pole of the MOS tube Q3 and the double-color temperature lamp bead load circuit, and the D pole of the MOS tube Q3 is connected with the filtering constant current circuit; the G pole of the MOS tube Q4 is connected with the control interface circuit through a resistor R16, the S pole of the MOS tube Q4 is grounded, the D pole of the MOS tube Q4 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with the positive pole of a diode ZD2, one end of a resistor R17 and the G pole of the MOS tube Q5, the negative pole of the diode ZD2 is connected with the other end of the resistor R17, the S pole of the MOS tube Q5 and the double-color temperature lamp bead load circuit, and the D pole of the MOS tube Q5 is connected with the filtering constant current circuit.
Compared with the prior art, the utility model has the beneficial effects that: the utility model receives the output signal of the intelligent wireless module/sensor, so that the linear power lamp is more intelligent and convenient to adjust; the circuit is reliable, low in cost and has market competitiveness; the circuit elements are few, and the circuit elements and the lamp beads can be placed on a PCB board to be made into a DOB (Driver On Board) scheme, so that the height and the volume of the power supply are reduced.
Drawings
Fig. 1 is a circuit diagram of a linear constant current power supply control circuit.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
Referring to fig. 1, a linear constant current power supply control circuit includes:
the input circuit is used for converting input alternating current into direct current and providing safety protection;
the filtering constant current circuit is used for filtering the input direct current and outputting constant current to be supplied to the double-color temperature lamp bead load circuit;
the double-color temperature lamp bead load circuit is used for working and lighting of the double-color temperature lamp beads;
the 5V auxiliary power supply circuit is used for supplying power to the control interface circuit through 5V direct-current voltage;
the control interface circuit is used for receiving the control signal of the intelligent wireless module/sensor and outputting the control signal to the control circuit;
the control circuit is used for receiving the control signal to control the working condition of the double-color temperature lamp bead load circuit;
the input circuit is connected with the filtering constant current circuit and the 5V auxiliary power supply circuit, the filtering constant current circuit is connected with the double-color-temperature lamp bead load circuit and the control circuit, the 5V auxiliary power supply circuit is connected with the control interface circuit, the control interface circuit is connected with the control circuit, and the control circuit is connected with the double-color-temperature load power supply circuit.
In particular embodiments: referring to fig. 1, the input circuit includes a fuse FR1, a varistor MOV1, and a rectifier BD1, and functions of overcurrent protection/short circuit protection, lightning pulse protection, inrush surge protection, and full-wave rectification; the 5V auxiliary power supply circuit comprises an integrated circuit U2 (BP 2525B), a capacitor C4, a diode D2, a resistor R8, an inductor L2, a capacitor EC2, a capacitor C3, a diode D4 and a capacitor EC3, and provides 5V power supply for intelligent control modules such as external wireless and sensor modules.
In this embodiment: referring to fig. 1, the filtering constant current circuit includes an integrated circuit U1, the type of the integrated circuit U1 is OB5656, pin 1 of the integrated circuit U1 is connected to the cathode of the diode D1, one end of the capacitor EC1, one end of the resistor R1, the load circuit of the bicolor bead, the anode of the diode D1 is connected to the input circuit, pin 2 of the integrated circuit U1 is connected to the input circuit through the resistor R2, pin 4 of the integrated circuit U1 is grounded through the resistor R7, pin 5 of the integrated circuit U1 provides the capacitor C2 to be grounded, pin 6 of the integrated circuit U1 is connected to one end of the resistor R3, one end of the resistor R4, the other end of the resistor R3 is connected to the other end of the resistor R4, the control circuit, pin 7 of the integrated circuit U1 is connected to one end of the resistor R5, one end of the resistor R6, the other end of the resistor R5 is grounded, pin 8 of the integrated circuit U1 is connected to the cathode of the protection tube TVS1, the other end of the resistor EC1, the other end of the resistor R1, and the positive electrode of the protection tube TVS1 is grounded.
The diode D1, the capacitor EC1, and the resistor R1 can reduce the strobe effect, and the power factor PF >0.9 can be achieved by matching with the resistor R3 and the resistor R4 of the integrated circuit U1. The resistor R5 and the resistor R6 are used for setting the constant current of the integrated circuit U1. The capacitor C2 is a compensation element of the integrated circuit U1, and the resistor R7 is a thermal protection device.
In this embodiment: referring to fig. 1, the dual-color temperature bead load circuit includes a warm light string and a cold light string, the warm light string and the cold light string are connected in parallel, the warm light string is formed by connecting a plurality of warm light LEDs in series, and the cold light string is formed by connecting a plurality of cold light LEDs in series.
The cold and warm light adjustment is realized by controlling different working states of the warm light string and the cold light string.
In this embodiment: referring to fig. 1, the control interface circuit includes an interface CN1, an intelligent wireless module/sensor is externally connected to the interface CN1, a No. 1 pin of the interface CN1 is connected to the 5V auxiliary power supply circuit, a No. 2 pin, a No. 3 pin and a No. 4 pin of the interface CN1 are connected to the control circuit, and a No. 5 pin of the interface CN1 is grounded.
The control signal of the external intelligent wireless module/sensor is received through the interface CN1 and is output to the control circuit.
In this embodiment: referring to fig. 1, the control circuit includes a MOS transistor Q1, a MOS transistor Q2, a MOS transistor Q3, a MOS transistor Q4, and a MOS transistor Q5, wherein a G electrode of the MOS transistor Q1 is connected to the control interface circuit through a resistor R10, an S electrode of the MOS transistor Q1 is grounded, and a D electrode of the MOS transistor Q1 is connected to the filtering constant current circuit; the G pole of the MOS tube Q2 is connected with the control interface circuit through a resistor R12, the S pole of the MOS tube Q2 is grounded, the D pole of the MOS tube Q2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with the anode of a diode ZD1, one end of a resistor R11 and the G pole of the MOS tube Q3, the cathode of the diode ZD1 is connected with the other end of the resistor R11, the S pole of the MOS tube Q3 and the double-color temperature lamp bead load circuit, and the D pole of the MOS tube Q3 is connected with the filtering constant current circuit; the G pole of the MOS tube Q4 is connected with the control interface circuit through a resistor R16, the S pole of the MOS tube Q4 is grounded, the D pole of the MOS tube Q4 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with the positive pole of a diode ZD2, one end of a resistor R17 and the G pole of the MOS tube Q5, the negative pole of the diode ZD2 is connected with the other end of the resistor R17, the S pole of the MOS tube Q5 and the double-color temperature lamp bead load circuit, and the D pole of the MOS tube Q5 is connected with the filtering constant current circuit.
The PWM-SW signal is a signal for controlling standby power consumption, when the lamp is turned off, a signal of the No. 6 pin HP of the integrated circuit U1 to the ground through the resistors R3 and R4 is required to be disconnected, and otherwise, the standby power consumption exceeds the standard required 0.5W max value. And PWM-CW passes R12, R14, R9, R11, Q2, Q3, ZD1 and PWM-WW passes R16, R18, R15, R17, Q4, Q5, ZD2 to control the switch and the color temperature duty ratio modulation of the cold and warm street lamp beads respectively. The diodes ZD1 and ZD2 are voltage-stabilizing diodes, and play a role in protecting the MOS transistors Q3 and Q5.
The working principle of the utility model is as follows: the input circuit is used for converting input alternating current into direct current and providing safety protection; the filtering constant current circuit is used for filtering the input direct current and outputting constant current to be supplied to the double-color temperature lamp bead load circuit; the double-color temperature lamp bead load circuit is used for working and lighting of the double-color temperature lamp beads; the 5V auxiliary power supply circuit is used for supplying power to the control interface circuit through 5V direct-current voltage; the control interface circuit is used for receiving the control signal of the intelligent wireless module/sensor and outputting the control signal to the control circuit; the control circuit is used for receiving the control signal to control the working condition of the double-color temperature lamp bead load circuit.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. A linear constant current power supply control circuit is characterized in that:
the linear constant current power supply control circuit comprises:
the input circuit is used for converting input alternating current into direct current and providing safety protection;
the filtering constant current circuit is used for filtering the input direct current and outputting constant current to be supplied to the double-color temperature lamp bead load circuit;
the double-color temperature lamp bead load circuit is used for working and lighting of the double-color temperature lamp beads;
the 5V auxiliary power supply circuit is used for supplying power to the control interface circuit through 5V direct-current voltage;
the control interface circuit is used for receiving the control signal of the intelligent wireless module/sensor and outputting the control signal to the control circuit;
the control circuit is used for receiving the control signal to control the working condition of the double-color temperature lamp bead load circuit;
the input circuit is connected with the filtering constant current circuit and the 5V auxiliary power supply circuit, the filtering constant current circuit is connected with the double-color-temperature lamp bead load circuit and the control circuit, the 5V auxiliary power supply circuit is connected with the control interface circuit, the control interface circuit is connected with the control circuit, and the control circuit is connected with the double-color-temperature load power supply circuit.
2. The linear constant current power supply control circuit according to claim 1, wherein the filter constant current circuit comprises an integrated circuit U1, the type of the integrated circuit U1 is OB5656, pin 1 of the integrated circuit U1 is connected to the cathode of a diode D1, one end of a capacitor EC1, one end of a resistor R1, a two-color temperature bead load circuit, the anode of the diode D1 is connected to the input circuit, pin 2 of the integrated circuit U1 is connected to the input circuit through a resistor R2, pin 4 of the integrated circuit U1 is grounded through a resistor R7, pin 5 of the integrated circuit U1 provides a capacitor C2 to be grounded, pin 6 of the integrated circuit U1 is connected to one end of a resistor R3, one end of a resistor R4 is connected to the other end of the resistor R3, the other end of the resistor R4 is connected to a control circuit, pin 7 of the integrated circuit U1 is connected to one end of a resistor R5, one end of the other end of the resistor R6 is grounded, pin 8 of the integrated circuit U1 is connected to the cathode of a protection tube TVS1, the other end of the resistor R1 is grounded, and the anode of the protection tube TVS1 is grounded.
3. The linear constant current power supply control circuit according to claim 1, wherein the bicolor temperature lamp bead load circuit comprises a warm light string and a cold light string, the warm light string and the cold light string are connected in parallel, the warm light string is formed by connecting a plurality of warm light LEDs in series, and the cold light string is formed by connecting a plurality of cold light LEDs in series.
4. The linear constant current power supply control circuit according to claim 1, wherein the control interface circuit comprises an interface CN1, the interface CN1 is externally connected with an intelligent wireless module/sensor, a pin 1 of the interface CN1 is connected with a 5V auxiliary power supply circuit, a pin 2, a pin 3 and a pin 4 of the interface CN1 are connected with the control circuit, and a pin 5 of the interface CN1 is grounded.
5. The linear constant current power supply control circuit according to claim 1 or 4, wherein the control circuit comprises a MOS tube Q1, a MOS tube Q2, a MOS tube Q3, a MOS tube Q4 and a MOS tube Q5, the G pole of the MOS tube Q1 is connected with the control interface circuit through a resistor R10, the S pole of the MOS tube Q1 is grounded, and the D pole of the MOS tube Q1 is connected with the filtering constant current circuit; the G pole of the MOS tube Q2 is connected with the control interface circuit through a resistor R12, the S pole of the MOS tube Q2 is grounded, the D pole of the MOS tube Q2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with the anode of a diode ZD1, one end of a resistor R11 and the G pole of the MOS tube Q3, the cathode of the diode ZD1 is connected with the other end of the resistor R11, the S pole of the MOS tube Q3 and the double-color temperature lamp bead load circuit, and the D pole of the MOS tube Q3 is connected with the filtering constant current circuit; the G pole of the MOS tube Q4 is connected with the control interface circuit through a resistor R16, the S pole of the MOS tube Q4 is grounded, the D pole of the MOS tube Q4 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with the positive pole of a diode ZD2, one end of a resistor R17 and the G pole of the MOS tube Q5, the negative pole of the diode ZD2 is connected with the other end of the resistor R17, the S pole of the MOS tube Q5 and the double-color temperature lamp bead load circuit, and the D pole of the MOS tube Q5 is connected with the filtering constant current circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322471278.4U CN220798587U (en) | 2023-09-12 | 2023-09-12 | Linear constant current power supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322471278.4U CN220798587U (en) | 2023-09-12 | 2023-09-12 | Linear constant current power supply control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220798587U true CN220798587U (en) | 2024-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322471278.4U Active CN220798587U (en) | 2023-09-12 | 2023-09-12 | Linear constant current power supply control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220798587U (en) |
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2023
- 2023-09-12 CN CN202322471278.4U patent/CN220798587U/en active Active
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