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My relay datasheet is https://www.te.com/catalog/pn/en/2-1393190-8
have you noticed 24VDC relay operating voltage 18VDC they have mentioned
how you have select the value of resistors,capacitors, op-amps, transistors and diodes? could you please elaborate on this?
Sorry i forget to attach the scan copy to identify polarity of capacitor, go through attached file currently i have connected all capacitor in this manner. do let me know if require any modification in this.
How did you calculate the value of C1 R7 D4 & C2, R8, D5 & R9, C3 ?? because all those components are RC charge circuit
Brad, do it again!
One news is from my end is that, circuit is operating well, currently I am performing FMEA and risk analysis on the circuit. I have following questions please have a look on that. Consider above attached schematic
1) What’s the need and function of R2, R3, R4 & R5?
2) What’s the need and function of R10, R11, R12 & R13?
3) Functionality of D1 & D?
4) Functionality of D8?
5) And Most importantly how you have finalize the C1 & C2 and R7 & R8 value? On the basis of any theoretical equation? Please share the fundamental equation
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