Are you trying to or trying to clone the circuit ?
AC Live --- Fuse --- EMI Choke --- Bridge Diode (+) --- Bulk Cap (+) --- Transformer Primary (Pin 1) | | GND MOSFET (Drain) | Source --- Current Sense Resistor --- GND Primary | PWM Controller (CS pin) a20112 power supply schematic
The A20112 typically functions as a linear or regulated switch-mode power supply (SMPS), depending on the specific manufacturing revision (often tied to vintage electronics brands like McIntosh or legacy computing peripherals). Are you trying to or trying to clone the circuit
The pulsating DC from the rectifier is too unstable for electronic workloads. a20112 power supply schematic
A typical application schematic based on the R2A20112 (as outlined in Renesas documentation) includes the following critical sections: