Power的LinkSwitch-CV大大简化了要求苛刻的CV电源设计

The LinkSwitch-CV dramatically simplifies CV power supply design with tight CV requirements and by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage regulation, along with input voltage variations and temperature.

The device incorporates a 700 V power MOSFET, a novel On/Off control state machine, a high voltage switched current source for self biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry onto a monolithic IC.

Dramatically Simplifies CV Converters

Eliminates optocoupler and all secondary CV control circuitry Eliminates bias winding supply – IC is self biasing

Advanced Performance Features

Compensates for external component temperature variations Very tight IC parameter tolerances using proprietary trimming technology Frequency jittering greatly reduces EMI filter cost Even tighter output tolerances achievable with external resistor selection/trimming

Advanced Protection/Safety Features

Auto-restart protection reduces delivered power by <95% for output short circuit and all control loop faults (open and shorted components) Hysteretic thermal shutdown – automatic recovery reduces power supply returns from the field Meets HV creepage requirements between Drain and all other pins, both on the PCB and at the package

Applications

DVD/STB

Adapters

Standby and auxiliary supplies

Home appliances, white goods and consumer electronics

Industrial controls