Title:
HIGH-VOLTAGE, HIGH-POWER-FACTOR NON-FLICKER LIGHT STRIP
Document Type and Number:
WIPO Patent Application WO/2021/073550
Kind Code:
A1
Abstract:
The present invention provides a high-voltage, high-power-factor non-flicker light strip, comprising a power supply trunk line and a branch line connected to the power supply; sampling branch line comprises a rectifier bridge DB1, a varistor 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 de-flickering chip U2, and a capacitor C1; one end of said varistor RV1 is connected to a pin 2 of said rectifier bridge DB1, and the other end of the varistor RV1 is connected to a pin 4 of the rectifier bridge DB1; a pin 2 of the rectifier bridge DB1 is connected to the pin 1 of the rectifier diode, and one end of the power discharge resistor R3 is connected to the pin 2 of the rectifier bridge DB1; the other end of the power discharge resistor R3 is connected to a pin 7 of the constant current chip U1; an anode of the lamp bead unit is connected to the pin 2 of the rectifier diode. The beneficial effects of the present invention are: achieving the effect of a high power factor and no flicker.
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Inventors:
HUANG HUGO (CN)
Application Number:
PCT/CN2020/121007
Publication Date:
April 22, 2021
Filing Date:
October 15, 2020
Export Citation:
Assignee:
SHENZHEN GUOYING OPTOELECTRONICS CO LTD (CN)
International Classes:
H05B45/30; H05B33/00
Foreign References:
| CN110891348A | 2020-03-17 | |||
| CN211090051U | 2020-07-24 | |||
| CN205883656U | 2017-01-11 | |||
| CN207124788U | 2018-03-20 | |||
| CN109041346A | 2018-12-18 | |||
| CN204887618U | 2015-12-16 | |||
| KR101325079B1 | 2013-11-05 |
Attorney, Agent or Firm:
SHENZHEN TIANYUAN INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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