New Energy Standards Banish Linear Supplies
Mar 1, 2005
With the California Energy Commission mandating
minimum levels of efficiency for external
power supplies sold in the state, many linear
supplies will need to be redesigned using
switch-mode technology....
Boosting Power Supply Efficiency for Desktop Computers
Feb 1, 2005
Adopting active PFC for harmonic-reduction while
making other architectural- and component-level
improvements can cost-effectively reduce losses
in ATX power supplies....
IC Supports Primary-Side Power Monitoring
Jan 1, 2005
In mission-critical applications with isolated
dc-dc converters, monitoring conditions on the
48-V power bus can significantly improve system
performance by detecting latent faults before
they cause system outages....
Passive Current Sharing Boosts Power and Reliability
Jan 1, 2005
Passive current sharing is a method of paralleling the outputs of two or more power supplies or dc-dc converters so that they share the load near equally....
DIN Rail Power Supplies Move Beyond the Factory Floor
Aug 1, 2004
Industrial applications have employed a variety of control voltages over the years, ranging from 440 Vac to 110 Vac to 24 Vdc in more recent years. The...
Simple, Reliable EN-Compliant Power System
Jul 1, 2004
The recent amendment to EN61000-3-2 has restated the harmonic current limits required for compliance as applied to most professional and industrial equipment...
IEEE 1625 Helps Promote Safety and Reliability
Apr 1, 2004
The IEEE standard's proven design methodologies help designers of Li-ion battery-powered systems achieve safety and reliability in their designs despite time-to-market pressures....
Optimize PFC Preregulator Designs
Jun 1, 2002
For EU applications, PFC front-end techniques, such as the CCM boost converter with average current mode control, are widely used to achieve IEC specifications....
