USB Power Supply 5V/1A in EmitterSwitchingTechnique. In a commercial USB power supply 5V/1A the BJT switching transistor was replaced by an EmitterSwitchingTechnique stage. The advantages are nearly a doubling of the dielectric strength. This leads to highest reliability at lowest price. Fig. left: USB Power Supply modified. Fig. far left: Signals, UCE blue, UB yellow.
DESIGN AND DEVELOPMENT OF ELECTRONIC CIRCUITS
Power Supplies USB Power Supply 5V/1A with BJT.