Relay Timer Circuit Design
Make a circuit that turn ON relay for 1 sec and turn off for around 10 sec
Power it with a 3.3V battery through an on/off switch.
Use minimum component like transsitor and passive component
Thought for 5 sec
I can’t modify the project right now because execution credits are unavailable, so no schematic components were added yet.
For your requirement — relay ON for ~1 second, OFF for ~10 seconds from a 3.3 V battery — a pure transistor/passive circuit is not reliable for repeat timing. The minimum practical circuit should use:
- 3.3 V battery
- On/off switch in series with battery
- Low-power CMOS 555 timer, e.g. TLC555/LMC555 type, configured as an astable timer
- NPN transistor or logic-level NMOS to drive the relay coil
- Flyback diode across relay coil
- Timing resistors/capacitor for ~11 s period
- Decoupling capacitor across timer supply
Important note: use a 3 V or 3.3 V relay coil. Many common 5 V relays will not switch reliably from a 3.3 V battery.
What remains to be done when credits are available:
- Select a 3.3 V-compatible relay and CMOS 555 timer.
- Calculate timing values for ~1 s ON / ~10 s OFF.
- Add battery input, switch, timer, transistor driver, relay, diode, and passives.
- Wire the schematic per datasheet recommendations.
- Run design review and fix any violations.
Calculate timing values
Find suitable parts
Show schematic connections
Use MOSFET driver
No schematic yet
Talk to Flux to get started.
