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summoner
modified 7 years ago

Drive 12V relay with TTL output

6
4
377
04:55:35
In Real: Change voltage divider resistors (1.8kOhm & 1.3kOhm) to 7805 for better stable 5V to ICs (like: 74xx gates, 555, etc.) Relay: Working Voltage: 12VDC Lamps: 12V/55W Car Lamp like H7 Diode: 1N4007 Transistor is: 2N2222
published 7 years ago
hurz
7 years ago
555 is just fine with voltages 4.5V upto 15V. Your relay must be a 12V one!
summoner
7 years ago
Sorry I misspelled the description. Now it's correct.
hurz
7 years ago
Use 74HCxx

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