Ultra fast and high efficiency inductive coil driver

Ultra low dropout voltage regulator

Ultra low power tracked low voltage reference source

Ultra low power tracked low voltage reference source

Ultra-low drop-out monolithic voltage regulator

Ultra-low power switching regulator method and apparatus

Ultra-low quiescent current low dropout (LDO) voltage...

Ultra-low-power mode for a voltage regulator

Ultrasonic generator with combined oscillator and current regula

Under voltage lock out circuit and method

Under voltage lockout circuit for switching mode power supply

Under-load switching device particularly adapted for voltage reg

Underload tapchanging voltage regulators for ease of field...

Unified constant-frequency integration control of active...

Uniform converter output voltage distribution power system

Uniform intensity led driver circuit

Uninterruptible power supply systems, voltage regulators and...

Uninterruptible power system

Unipolar or bipolar chopping converter with three...

Unipolar or bipolar chopping converter with two magnetically...