Network load management by TTL chip. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Clocks, timers, relays, load switches
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The circuit below allows you to control the network load (220 V) from devices made on microcircuits and having a TTL output level. The circuit has optocoupler isolation, which allows you to well protect the device, made on microcircuits.
Such a device is convenient to use when it is necessary to control network devices from a computer through the LPT port.
Domestic optocouplers can be used as an optocoupler.
Literature
- "Radio Fernzehen Elektronik", No. 6/1983
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