LED driving circuit having SCR dimmer, circuit module and control method thereof
An apparatus can include: a bleeder circuit coupled to a DC bus of an LED driving circuit having an SCR dimmer; the bleeder circuit being configured to stabilize a voltage of the DC bus at a predetermined value by drawing a bleed current through a bleed path in a first mode, and to cut off the bleed path in a second mode; and a controller configured to control the bleeder circuit to be in the first mode before the SCR dimmer is turned on, and to switch to the second mode after the SCR dimmer is turned on, where the predetermined value is greater than zero.
Silergy Semiconductor Technology (Hangzhou) LTD
H H H Y H
H05B H05B H05B Y02B H05B
additional additional inventional additional inventional
Jianxin Huiqiang
Wang Chen