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.