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Posts Tagged ‘pwm controller’

Design of Temperature-Controlled PWM Boost Converter Circuit

Monday, December 14th, 2009

Temperature controlled pulse-width-modulator (PWM) boost converter circuit diagram is shown in the following figure. The boost converter may provide temperature-controlled operation of 12V fan from +5V supply.

Simulating Circuit Model to Develop and Design New Step Down Piezo Transformer

Monday, September 7th, 2009

The important thing needed in the piezo transformer is the energy conversion and the step down voltage waveform to achieve an optimal resonant frequency. Herein we provide an article consist of information about simulating circuit model to develop and design a new step down piezo transformer.

AT9933 Datasheet, the Automotive Hysteretic Boost-Buck LED Driver IC

Saturday, August 22nd, 2009

the AT9933 LED driver IC is typically ideal for automotive LED lamps since this IC has features such as Constant current LED Driver, Ambient temperature rating up to 125°C, Meets AEC-Q100 requirements, Input and output current sensing, Enable & PWM dimming, Internal 75V linear regulator, Steps input voltage up or down and low EMI.