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

Pulse Width modulation (PWM) is a commonly used technique for generally controlling DC power to an electrical device, made practical by modern electronic power switches. The simple circuit was designed using a 555 timer and pulse width modulation for controlling the speed of DC motor. LED lights cannot accept analog signals, so PWM is a common method of dimming LED lighting. PWM is a method of controlling power to devices. The clean regulated dc is then fed to a pulse-width-modulated inverter that recreates clean, tightly regulated ac-power at the desired frequency. Pulse width modulation dc motor control is one of the popular circuits in Robotics. With advances in solid-state power electronic devices and microprocessors, various pulse-width-modulation (PWM) techniques have been developed for industrial applications. 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. What is Pulse Width Modulation (PWM) and when is it used? PWM is employed in a wide variety of applications, ranging from measurement and communications to power control and conversion. Pulse-width Modulated DC–DCPower ConvertersMARIAN K. The pulse width Alex Lidow - CEO and Founder of Efficient Power Conversion (EPC). 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. For example, PWM-based three-phase voltage source inverters ( VSI) convert DC power to AC power with variable voltage magnitude and variable frequency.