LG Chas.CL-64 Flat.L1730SSFT-2.pdf | | LIPS Board Block Diagram
12V
50 ~ 60Hz HVDC 100KHz
EMI COMPONENTS
INPUT RECTIFIER AND FILTER
ENERGY TRANSFER
OUTPUT RECTIFIER AND FILTER
5V GND
LINE 100 ~ 240V
PWM CONTROL CIRCUIT
PHOTO-COUPLER ISOLATION
SIGNAL COLLECTON
PRIMARY
SECONDARY
12V
INVERTER CIRCUIT
High Voltage output
Operation description_LIPS
1. EMI components. This part contains of EMI components to comply with global marketing EMI standards like FCC,VCCI CISPR, the circuit included a line-filter, across line capacitor and of course the primary protection fuse. 2. Input rectifier and filter. This part function is for transfer the input AC voltage to a DC voltage through a bridge rectifier and a bulk capacitor. 3. Energy Transfer. This part function is for transfer the primary energy to secondary through a power transformer. 4. Output rectifier and filter. This part function is to make a pulse width modulation control and to provide the driver signal to power switch,to adjust the duty cycle during different |