Switcher ICs Simplify Constant-Voltage Converter Design
Targeting applications requiring +/-5% voltage accuracy, the LinkSwitch-CV Series of AC/DC switched-mode power conversion ICs simplify the design of CV converters by eliminating all secondary-side CV and control-loop compensation circuitry. THe family includes the LNK626PG, presented as the world’s highest-power accurate constant voltage (CV) integrated switcher IC with primary-side control. The devices combine a 700V power MOSFET, on/off control state machine, self-biasing circuit, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry. From $0.64 ea in 10,000 unit quantities.
Power Integrations’ Green Room web site (www.powerint.com/greenroom ) contains information on the issue of energy waste from inefficient power supplies, as well as tips on how to minimize the amount of energy wasted by household and office electronics.