Electronic Device And Electronic Circuit

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Friday, January 02, 2009

PWM Generator with Current Limit Circuit


The SG2524 and SG3524 incorporate all the
functions required in the construction of a
regulating power supply, inverter, or switching
regulator on a single chip. They also can be used
as the control element for high-power-output
applications. The SG2524 and SG3524 were
designed for switching regulators of either polarity,
transformer-coupled dc-to-dc converters, transformerless
voltage doublers, and polarity converter applications
employing fixed-frequency, pulse-width-modulation
techniques. The complementary output allows
either single-ended or push-pull application. Each device
includes an on-chip regulator, error amplifier, programmable
oscillator, pulse-steering flip-flop, two uncommitted
pass transistors, a high-gain comparator, and current-limiting
and shut-down circuitry.

SG3524 Datasheet pdf

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