POWER Repair Guide

Power Classification Type
 ACDC: Rectification.
 DCDC: DC Converter.
 DCAC: Inverter.
 ACAC: AC Converter.

DCDC: DC Converter.
@ DC Converter  Linear & Switch
@ IC in Power circuit, generally call “Regulator

Voltage Mode Control
– Single Control Loop
– No Current Sense
Resistor
– Better Noise
Immunity
– Less Sensitive to
Layout

Current Mode Control
– Immediate Response
to Changes in Input
Voltage
– Inherent Current
Limiting

laptop power supply troubleshooting flowchart