Interface A TTL Magcard Reader To The PC Games Port
The connection of magnetic-card readers to PC-compatible computers is usually made through a serial port or a keyboard interface. In this configuratio...[detail]
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Simple Soft-Start Circuitry Provides Long Startup Times
Many dc-dc converters require relatively large amounts of input current at startup (when input power is first applied). A soft-start function minimize...[detail]
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Nano power VFC Includes Self-Compensating Charge Pump
Of the many starting points for voltage-to-frequency converter (VFC) design, one of the golden oldies is the classic diode-capacitor charge pump. An e...[detail]
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