CN110891348A - High-voltage high-power-factor stroboflash-free lamp strip - Google Patents
High-voltage high-power-factor stroboflash-free lamp strip Download PDFInfo
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- CN110891348A CN110891348A CN201910991527.8A CN201910991527A CN110891348A CN 110891348 A CN110891348 A CN 110891348A CN 201910991527 A CN201910991527 A CN 201910991527A CN 110891348 A CN110891348 A CN 110891348A
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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]
- H05B45/30—Driver circuits
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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
- H05B33/00—Electroluminescent light sources
Abstract
The invention provides a high-voltage high-power-factor strobeless lamp strip which comprises a power supply main circuit and a branch circuit connected with the power supply main circuit, wherein the branch circuit comprises a rectifier bridge DB1, a piezoresistor RV1, a rectifier diode D1, a lamp bead unit, a constant current chip U1, a sampling resistor R1, a system discharge resistor R2, a power discharge resistor R3, a stroboscopic-removing chip U2 and a capacitor C1, one end of the piezoresistor RV1 is connected with a pin 2 of the rectifier bridge DB1, and the other end of the piezoresistor RV1 is connected with a pin 4 of the rectifier bridge DB 1; pin 2 of the rectifier bridge DB1 is connected with pin 1 of the rectifier diode, and one end of the power discharge resistor R3 is connected with pin 2 of the rectifier bridge DB 1; the other end of the power discharge resistor R3 is connected with a pin 7 of the constant current chip U1; and the anode of the lamp bead unit is connected with the pin 2 of the rectifier diode. The invention has the beneficial effects that: the high-power factor value and no stroboscopic effect are realized.
Description
Technical Field
The invention relates to a lighting device, in particular to a high-voltage high-power-factor stroboflash-free lamp strip.
Background
The Power Factor (PF) of the conventional light strip is low, and there is a stroboscopic problem.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-voltage high-power-factor strobeless lamp strip.
The invention provides a high-voltage high-power-factor strobeless lamp strip which comprises a power supply main circuit and a branch circuit connected with the power supply main circuit, wherein the branch circuit comprises a rectifier bridge DB1, a piezoresistor RV1, a rectifier diode D1, a lamp bead unit, a constant current chip U1, a sampling resistor R1, a system discharge resistor R2, a power discharge resistor R3, a stroboscopic-removing chip U2 and a capacitor C1, one end of the piezoresistor RV1 is connected with a pin 2 of the rectifier bridge DB1, and the other end of the piezoresistor RV1 is connected with a pin 4 of the rectifier bridge DB 1; pin 2 of the rectifier bridge DB1 is connected with pin 1 of the rectifier diode, and one end of the power discharge resistor R3 is connected with pin 2 of the rectifier bridge DB 1; the other end of the power discharge resistor R3 is connected with a pin 7 of the constant current chip U1; the anode of the lamp bead unit is connected with the pin 2 of the rectifier diode; the cathode of the lamp bead unit is connected with a pin 2 of the stroboscopic-removing chip U2; a pin 3 of the stroboscopic removing chip U2 is respectively connected with one end of the capacitor C1 and a pin 5 of the constant current chip U1; the other end of the capacitor C1 is connected with a pin 1 of the stroboscopic-removing chip U2; a pin 2 of the constant current chip U1 is connected with one end of the system bleeder resistor R2, and a pin 4 of the constant current chip U1 is connected with the other end of the system bleeder resistor R2 and one end of the sampling resistor R1; and a pin 4 of the rectification DB1 is connected with a pin 1 and a pin 3 of the constant current chip U1 and the other end of the sampling resistor R1.
As a further improvement of the invention, the branch circuit further includes a filter electrolytic capacitor E1 and a capacitor discharge resistor R4, the anode of the filter electrolytic capacitor E1 and one end of the bleeder resistor R4 are respectively connected to the anode of the lamp bead unit, and the cathode of the filter electrolytic capacitor E1 and the other end of the bleeder resistor R4 are respectively connected to the pin 3 of the stroboscopic removal chip U2.
As a further improvement of the invention, the lamp bead unit comprises at least two LED lamp beads connected in series.
As a further improvement of the invention, the total voltage Uled of the LED lamp beads connected in series is between 0.8 and 1.2 times of the AC input voltage Uac.
As a further improvement of the invention, the total voltage Uled of the series-connected LED lamp beads is equal to the AC input voltage Uac.
As a further improvement of the present invention, the power supply main circuit comprises a main circuit fuse F1, and one end of the main circuit fuse F1 is connected to an ac live wire; the other end of the main circuit fuse F1 is connected with a pin 1 of the rectifier bridge DB 1; and a pin 3 of the rectifier bridge DB1 is connected with an alternating current zero line.
As a further improvement of the invention, the high-voltage high-power-factor strobeless lamp strip comprises an FPC flexible printed circuit board, a metal wire is covered on the back of the FPC flexible printed circuit board and is directly connected with a mains supply, and the rectifier bridge DB1, the voltage dependent resistor RV1, the capacitor C1, the constant current chip U1, the stroboscopic removal chip U2, the rectifier diode D1, the sampling resistor R1, the system discharge resistor R2 and the power discharge resistor R3 are all arranged in the same unit.
As a further improvement of the invention, the constant current chip U1 is a high-voltage linear constant current IC with a silicon controlled rectifier dimming function, the voltage resistance is 450V, and the current range is 5-60 mA.
As a further improvement of the invention, the capacitor C1 is a high-voltage low-frequency filter electrolytic capacitor with withstand voltage 200/400V, and the capacity of the electrolytic capacitor is equal to the power of each branch.
As a further improvement of the invention, the stroboscopic-removing chip U2 is a chip for eliminating 100HZ/120HZ LED current ripple, a 90V power MOSFET is arranged in the chip, the charging and discharging of a VC port capacitor are controlled by detecting the voltage of an OUT port, the working state of the built-in power MOSFET is adjusted, and the LED current ripple is converted into the voltage ripple of the OUT port, so that the current and the voltage of the LED lamp string are kept constant.
The invention has the beneficial effects that: through above-mentioned scheme, realized high power factor value and do not have stroboscopic effect.
Drawings
Fig. 1 is a circuit diagram of a branch of a high-voltage high-power-factor strobeless lamp strip according to the present invention.
Fig. 2 is a circuit diagram of a power supply trunk of the high-voltage high-power-factor strobeless lamp strip according to the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 2, a high-voltage high-power-factor strobeless lamp strip includes a power supply trunk and a branch connected to the power supply trunk, where the branch includes a rectifier bridge DB1, a voltage dependent resistor RV1, a rectifier diode D1, a lamp bead unit, a constant current chip U1, a sampling resistor R1, a system discharge resistor R2, a power discharge resistor R3, a stroboscopic-free chip U2, and a capacitor C1, where one end of the voltage dependent resistor RV1 is connected to a pin 2 of the rectifier bridge DB1, and the other end of the voltage dependent resistor RV1 is connected to a pin 4 of the rectifier bridge DB 1; pin 2 of the rectifier bridge DB1 is connected with pin 1 of the rectifier diode, and one end of the power discharge resistor R3 is connected with pin 2 of the rectifier bridge DB 1; the other end of the power discharge resistor R3 is connected with a pin 7 of the constant current chip U1; the anode of the lamp bead unit is connected with the pin 2 of the rectifier diode; the cathode of the lamp bead unit is connected with a pin 2 of the stroboscopic-removing chip U2; a pin 3 of the stroboscopic removing chip U2 is respectively connected with one end of the capacitor C1 and a pin 5 of the constant current chip U1; the other end of the capacitor C1 is connected with a pin 1 of the stroboscopic-removing chip U2; a pin 2 of the constant current chip U1 is connected with one end of the system bleeder resistor R2, and a pin 4 of the constant current chip U1 is connected with the other end of the system bleeder resistor R2 and one end of the sampling resistor R1; and a pin 4 of the rectification DB1 is connected with a pin 1 and a pin 3 of the constant current chip U1 and the other end of the sampling resistor R1, so that the effects of high power factor value and no stroboflash are realized.
As shown in fig. 1 to 2, the branch circuit further includes a filter electrolytic capacitor E1 and a capacitor discharge resistor R4, the anode of the filter electrolytic capacitor E1 and one end of the bleed resistor R4 are respectively connected to the anode of the lamp bead unit, and the cathode of the filter electrolytic capacitor E1 and the other end of the bleed resistor R4 are respectively connected to the pin 3 of the stroboscopic removal chip U2.
As shown in fig. 1 to 2, the lamp bead unit includes at least two LED lamp beads connected in series.
As shown in fig. 1 to 2, the total voltage Uled of the LED beads connected in series is between 0.8 and 1.2 times the ac input voltage Uac.
As shown in fig. 1 to 2, the total voltage Uled of the LED beads connected in series is equal to the ac input voltage Uac.
As shown in fig. 1 to 2, the power supply trunk circuit includes a trunk fuse F1, and one end of the trunk fuse F1 is connected to the ac power line; the other end of the main circuit fuse F1 is connected with a pin 1 of the rectifier bridge DB 1; and a pin 3 of the rectifier bridge DB1 is connected with an alternating current zero line.
As shown in fig. 1 to 2, the high-voltage high-power-factor strobeless lamp strip includes an FPC flexible printed circuit board, a metal wire is covered on the back of the FPC flexible printed circuit board and directly connected to a zero line and a live line of a mains supply, and the rectifier bridge DB1, the voltage dependent resistor RV1, the capacitor C1, the constant current chip U1, the stroboscopic-removing chip U2, the rectifier diode D1, the sampling resistor R1, the system discharge resistor R2, and the power discharge resistor R3 are all built in the same unit.
As shown in fig. 1 to 2, the constant current chip U1 is a high voltage linear constant current IC, and has a thyristor dimming function, a withstand voltage of 450V, and a current range of 5 to 60 mA.
As shown in fig. 1 to 2, the capacitor C1 is a high-voltage low-frequency filter electrolytic capacitor with withstand voltage 200/400V, and the capacity of the electrolytic capacitor is equal to the power of each branch.
As shown in fig. 1 to 2, the stroboscopic removing chip U2 is a chip for eliminating 100HZ/120HZ LED current ripple, a 90V power MOSFET is built in the chip, the charging and discharging of the VC port capacitor is controlled by detecting the voltage at the OUT port, the operating state of the built-in power MOSFET is adjusted, and the LED current ripple is converted into the voltage ripple at the OUT port, so that the current and the voltage of the LED light string are kept constant.
The invention provides a high-voltage high-power-factor stroboflash-free lamp strip, which utilizes the back surface of an FPC (flexible printed circuit) soft board as a conducting wire, namely ACL/N, and a trunk fuse F1 is connected in series on a branch fire wire, so that the AC/L can be realized, each branch can be lightened under the condition that the AC/N is directly connected into a zero line and a fire wire of a mains supply, the high PF value and stroboflash-free effect can be achieved, and the effect that the required PF is more than 0.9 in the American Title 24 standard can be achieved; the stroboscopic index can reach the effect of less than 5%, and the human eyes are effectively protected, and the working efficiency is improved.
According to the high-voltage high-power-factor strobeless lamp strip, AC alternating current is rectified into DC direct current through the rectifier bridge DB 1; LED1.. LEDn is an LED lamp bead, the total voltage Uled is controlled to be 0.8 to 1.2 times of the alternating-current input voltage Uac in a series connection mode, and the effect is optimal when Uled =1 Uac; the constant current chip U1 is a high-voltage linear constant current IC, has the function of silicon controlled rectifier dimming, is resistant to voltage of 450V, and has the current range of 5-60 mA; the capacitor C1 is a high-voltage low-frequency filter electrolytic capacitor with withstand voltage of 200/400V, the capacity of the electrolytic capacitor is determined according to the power of each small branch, and the capacity is generally set according to 1: 1; the stroboscopic removing chip U2 is a chip for eliminating 100HZ/120HZ LED current ripples, a 90V power MOSFET is arranged in the chip, the charging and discharging of a VC port capacitor are controlled by detecting the voltage of an OUT port, the working state of the built-in power MOSFET is adjusted, and LED current ripples are converted into OUT port voltage ripples, so that the current and the voltage of the LED lamp string are kept constant. Realize that high PF does not have stroboscopic LED lamp area scheme.
The invention provides a high-voltage high-power-factor strobeless lamp strip.A rectifier bridge, a piezoresistor, a filter electrolytic capacitor, a constant-current IC, a stroboscopic-removing IC, a rectifier diode and a chip resistor capacitor are additionally arranged on an FPC board, so that the high-voltage strobeless lamp strip takes each small unit as a complete main body and is connected with commercial power through an American standard plug or a bare wire 2, namely OK. The problem that the common high-voltage lamp strip needs to be externally connected with a driving power supply, a filtering electrolytic capacitor and the direction needs to be distinguished in installation is solved, and convenient and rapid installation is realized.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a high-pressure high power factor does not have stroboscopic lamp area which characterized in that: the circuit comprises a power supply main circuit and a branch circuit connected with the power supply main circuit, wherein the branch circuit comprises a rectifier bridge DB1, a voltage dependent resistor RV1, a rectifier diode D1, a lamp bead unit, a constant current chip U1, a sampling resistor R1, a system discharge resistor R2, a power discharge resistor R3, a stroboscopic-free chip U2 and a capacitor C1, one end of the voltage dependent resistor RV1 is connected with a pin 2 of the rectifier bridge DB1, and the other end of the voltage dependent resistor RV1 is connected with a pin 4 of the rectifier bridge DB 1; pin 2 of the rectifier bridge DB1 is connected with pin 1 of the rectifier diode, and one end of the power discharge resistor R3 is connected with pin 2 of the rectifier bridge DB 1; the other end of the power discharge resistor R3 is connected with a pin 7 of the constant current chip U1; the anode of the lamp bead unit is connected with the pin 2 of the rectifier diode; the cathode of the lamp bead unit is connected with a pin 2 of the stroboscopic-removing chip U2; a pin 3 of the stroboscopic removing chip U2 is respectively connected with one end of the capacitor C1 and a pin 5 of the constant current chip U1; the other end of the capacitor C1 is connected with a pin 1 of the stroboscopic-removing chip U2; a pin 2 of the constant current chip U1 is connected with one end of the system bleeder resistor R2, and a pin 4 of the constant current chip U1 is connected with the other end of the system bleeder resistor R2 and one end of the sampling resistor R1; and a pin 4 of the rectification DB1 is connected with a pin 1 and a pin 3 of the constant current chip U1 and the other end of the sampling resistor R1.
2. The high voltage, high power factor, strobe-free light strip of claim 1, wherein: the branch circuit further comprises a filtering electrolytic capacitor E1 and a capacitor discharge resistor R4, the anode of the filtering electrolytic capacitor E1 and one end of the discharge resistor R4 are respectively connected with the anode of the lamp bead unit, and the cathode of the filtering electrolytic capacitor E1 and the other end of the discharge resistor R4 are respectively connected with a pin 3 of the stroboscopic removal chip U2.
3. The high voltage, high power factor, strobe-free light strip of claim 1, wherein: the lamp bead unit comprises at least two LED lamp beads connected in series.
4. The high voltage, high power factor, strobe-free light strip of claim 3, wherein: the total voltage Uled of the LED lamp beads connected in series is between 0.8 and 1.2 times of the alternating-current input voltage Uac.
5. The high voltage, high power factor, strobe-free light strip of claim 3, wherein: the total voltage Uled of the LED lamp beads connected in series is equal to the alternating current input voltage Uac.
6. The high voltage, high power factor, strobe-free light strip of claim 1, wherein: the power supply main circuit comprises a main circuit fuse F1, and one end of the main circuit fuse F1 is connected with an alternating current live wire; the other end of the main circuit fuse F1 is connected with a pin 1 of the rectifier bridge DB 1; and a pin 3 of the rectifier bridge DB1 is connected with an alternating current zero line.
7. The high voltage, high power factor, strobe-free light strip of claim 6, wherein: the high-voltage high-power-factor stroboflash-free lamp band comprises an FPC (flexible printed circuit) soft board, a metal wire is covered on the back surface of the FPC soft board and is directly connected with a mains supply, and the rectifier bridge DB1, the piezoresistor RV1, the capacitor C1, the constant-current chip U1, the stroboflash removal chip U2, the rectifier diode D1, the sampling resistor R1, the system discharge resistor R2 and the power discharge resistor R3 are arranged in the same unit together.
8. The high voltage, high power factor, strobe-free light strip of claim 1, wherein: the constant current chip U1 is a high-voltage linear constant current IC, has the function of silicon controlled rectifier dimming, is resistant to voltage of 450V, and has a current range of 5-60 mA.
9. The high voltage, high power factor, strobe-free light strip of claim 1, wherein: the capacitor C1 is a high-voltage low-frequency filter electrolytic capacitor with withstand voltage of 200/400V, and the capacity of the electrolytic capacitor is equal to the power of each branch.
10. The high voltage, high power factor, strobe-free light strip of claim 1, wherein: the stroboscopic removing chip U2 is a chip for eliminating 100HZ/120HZ LED current ripples, a 90V power MOSFET is arranged in the chip, the charging and discharging of a VC port capacitor are controlled by detecting the voltage of an OUT port, the working state of the built-in power MOSFET is adjusted, and LED current ripples are converted into OUT port voltage ripples, so that the current and the voltage of the LED lamp string are kept constant.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910991527.8A CN110891348A (en) | 2019-10-18 | 2019-10-18 | High-voltage high-power-factor stroboflash-free lamp strip |
| PCT/CN2020/121007 WO2021073550A1 (en) | 2019-10-18 | 2020-10-15 | High-voltage, high-power-factor non-flicker light strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910991527.8A CN110891348A (en) | 2019-10-18 | 2019-10-18 | High-voltage high-power-factor stroboflash-free lamp strip |
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| Publication Number | Publication Date |
|---|---|
| CN110891348A true CN110891348A (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910991527.8A Pending CN110891348A (en) | 2019-10-18 | 2019-10-18 | High-voltage high-power-factor stroboflash-free lamp strip |
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| CN (1) | CN110891348A (en) |
| WO (1) | WO2021073550A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073550A1 (en) * | 2019-10-18 | 2021-04-22 | 深圳市国盈光电有限公司 | High-voltage, high-power-factor non-flicker light strip |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101325079B1 (en) * | 2013-06-20 | 2013-11-05 | 주식회사 디에스이 | Flicker prevention circuit for light emitting diode lamp |
| CN204887618U (en) * | 2015-08-27 | 2015-12-16 | 林聪� | Novel nonpolarity compatible LED drive power supply |
| CN205883656U (en) * | 2016-07-30 | 2017-01-11 | 深圳市明微电子股份有限公司 | Silicon controlled rectifier circuit based on linear constant current drive of LED |
| CN207124788U (en) * | 2017-08-17 | 2018-03-20 | 厦门龙胜达照明电器有限公司 | A kind of high power factor is without stroboscopic light adjusting circuit |
| CN109041346A (en) * | 2018-08-23 | 2018-12-18 | 深圳市国盈光电有限公司 | High pressure Anti-surging is without stroboscopic lamp band |
| CN110891348A (en) * | 2019-10-18 | 2020-03-17 | 深圳市国盈光电有限公司 | High-voltage high-power-factor stroboflash-free lamp strip |
| CN211090051U (en) * | 2019-10-18 | 2020-07-24 | 深圳市国盈光电有限公司 | High-voltage high-power-factor stroboflash-free lamp strip |
-
2019
- 2019-10-18 CN CN201910991527.8A patent/CN110891348A/en active Pending
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2020
- 2020-10-15 WO PCT/CN2020/121007 patent/WO2021073550A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073550A1 (en) * | 2019-10-18 | 2021-04-22 | 深圳市国盈光电有限公司 | High-voltage, high-power-factor non-flicker light strip |
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| WO2021073550A1 (en) | 2021-04-22 |
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