Patent ID: 9603219
Date: 2017-03-21
CPC Classifications: G09G,H02M,H04N,H05B,Y02B

Claim:
1. A driving power supply apparatus for OLED comprises a power board connecting to both a motherboard and an OLED screen, wherein, the power board comprises: a standby circuit, a timing control module, a first transformer module, a second transformer module and a PFC circuit; the standby circuit is configured to output a power at supply voltage to the motherboard then supply the timing control module after connecting to an outside power source; the timing control module starts the PFC circuit based on a switch signal fed back from the motherboard, and the PFC circuit outputs a high voltage direct current (HVDC) to the timing control module, the first transformer module and the second transformer module; then the timing control module will turn on the first transformer module and the second transformer module, based on the HVDC signals output from the PFC circuit together with an enable signal, wherein, the first transformer module converts the HVDC into a first voltage before supplying to the motherboard, and the second transformer module is configured to convert the HVDC into a second voltage before supplying to the motherboard and the OLED screen; the timing control module also controls start sequences of both the first transformer module and the second transformer module, and lights the OLED screen up after both the switch signal and the enable signal are stable concurrently.