The Incredible Shrinking Power Supply: New IC Cuts AC Adapter Size
Sep 1, 2002
A new IC allows a switching topology that rivals the simplicity and low cost of linear adapters, enabling a smaller, lighter package of up to 75% efficiency with 3W output and <300mW at no load....
Filter Components Cut Emissions and Output Noise
Sep 1, 2002
A new power supply design uses a combination of chassis capacitors, non-inductive snubber resistors and an inductor to achieve 500mVp-p and 35 dB reductions in output noise and radiated emissions, respectively....
Compact 48kW Converter Powers X-Ray Machine
Jun 1, 2002
IGBT power modules integrate drivers, isolation, and ZVS logic circuits to lower switching losses, output regulation, and ripple....
FRA Measures Closed-Loop Response
May 1, 2002
Injecting a signal from a frequency response analyzer determines the gain and phase margin of a switching power supply....
Optimize Compensation with ZCS Gain/Phase Prediction
Apr 1, 2002
Analytical approach demonstrates how the open-loop gain and phase prediction can determine the optimal compensation network for a zero current switched (ZCS) dc-dc, variable frequency forward converter....
H-Field Probes Spot Switchmode Supply EMI
Sep 1, 2001
A set of H-field probes and an oscilloscope locate and identify troublesome magnetic field sources of EMI in switchmode supplies....
Switchmode Controller ICs Cover Range of Applications
May 1, 2001
The processor is key to computer operation where power specifications continue to place more stringent requirements on their dc source. This applies to...
