- on Test & Measurement
- Published in issue 9/2012 on page 47
Low-cost 60 MHz Sig Gen
With PWM mode and incremental control
This low-cost signal generator has an impressive frequency range from 250 Hz to 60 MHz. It can generate PWM signals from 250 Hz to 60 kHz, which are suitable for testing devices such as LED dimmers, ultrasonic transducers, voltage converters and drive systems for electric bicycle motors. It can also be operated in oscillator mode with a frequency range of 1 kHz to 60 MHz.
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Issued: August 22, 2012.
IC4 should be identified as a type 7402, not 74020 as printed in the schematic.
A fast version of the 7402 is required.