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Pulse-width Modulated DC-DC Power Converters Marian K. Kazimierczuk
Publisher: Wiley

Power transistors switching at 10's to 100's of kHz impose a high voltage, high A modulator circuit converts the error amplifier signal into a high frequency, pulse width modulated waveform to drive the switching power transistors. This set-up gives maximum motor torque at all speeds. The AC line voltage is rectified and then filtered to provide an unregulated high voltage DC rail to power the following DC-to-DC inverter circuit. Pulse-width Modulated DC-DC Power Converters. Figure 2: Basic switching DC power supply circuit. This book studies switch-mode power supplies (SMPS) in great detail. PWM is employed in a wide variety of applications, ranging from measurement and communications to power control and conversion. Up to Six High-Resolution Digital Pulsewidth Modulated (DPWM) Outputs for Supporting a Wide Range of Offline, Isolated and Non-Isolated DC/DC Topologies. The circuit uses an NE556 IC with adjustable speed control to pulse-width modulate a IRF530 MOSFET. Pulse width modulation dc motor control is one of the popular circuits in Robotics. The modules, which include an The low-voltage converters are made with a proven, patented design using discrete pulse width modulation circuitry and known radiation performance components de-rated per MIL-STD-975. ON Semiconductor Introduces Low Power, High Efficiency DC-DC Converter Optimized for Low Load Efficiency Chinese Japanese Korean. 250-ps DPWM Pulse-Width Resolution. 4-ns DPWM Frequency Resolution. Pulse-width Modulated DC–DCPower ConvertersMARIAN K. Pulse-width Modulated Dc-dc Power Converters. January 2006 — International Rectifier IR® (NYSE: IRF), a world leader in power management technology, today introduced the LS Series of radiation-hardened (RAD-Hard™) low-voltage, single- and dual-output DC-DC converter modules. Modern battery chargers require Pulse width-modulated dc–dc converters for battery charger, employing semiconductor power switches.