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So I asked A.I for some alternative cap dump alternative to using neons and scr type.  Personally I don't like that list of components how ever it may be useful to those who are experimenting with these! So here is the info. Take it with a grain of salt.  Big Grin

Here's a detailed guide to building the described circuit using commonly available components:

Components

Q1, Q2, Q4: NPN Transistors (e.g., BC548 or 2N3904)
Q3: PNP Transistor (e.g., BC558 or 2N3906)
ZD1: 24V Zener Diode
R1: 10k ohms
R2: 4.7k ohms
R3: 10k ohms
R4: Determine through experimentation, starting with 10k ohms
D1: Regular Diode (e.g., 1N4148)
C1: Capacitor (as per your requirement, e.g., 470uF)
Battery: 12V
Circuit Configuration
Charging Circuit:

Connect one terminal of C1 to the positive terminal of the battery.
Connect ZD1 across C1, in series with R1.
Connect Q1 base to the junction of ZD1 and R1.
Connect Q1 collector to Q2 base and emitter to ground.
Triggering Circuit:

Connect R2 between Q1 collector and the positive terminal of the battery.
Connect Q2 collector to Q3 base and emitter to ground.
Connect R3 from Q3 collector to the positive terminal of the battery.
Connect Q3 emitter to the other terminal of C1.
Discharge Circuit:

Same as the triggering circuit above. C1 will discharge into the battery through Q3.
Reset Mechanism:

Connect Q4 collector to Q2 base and emitter to ground.
Connect a diode (D1) in series with R4 between Q4 base and the negative terminal of C1.

How It Works

Charging Phase: C1 charges through ZD1 and R1. When it reaches 24 volts, ZD1 conducts, allowing current to flow into Q1's base.

Triggering Phase: Q1 turns on, driving Q2, which in turn drives Q3, creating a latch. Q3's saturation allows C1 to discharge into the battery.

Discharging Phase: The latch holds until C1 discharges sufficiently into the battery.

Reset Phase: When C1's voltage drops to the value determined by R4, Q4 turns on, breaking the latch and allowing the system to reset.

Building Steps:

Start by placing the transistors, diodes, and capacitor on a breadboard or PCB.
Connect the resistors as described above.
Connect the battery, ensuring correct polarity.
Carefully test each phase of the operation to ensure proper function.
Make adjustments to R4 if needed, to tune the reset voltage.
This circuit leverages the back EMF to recharge a battery and includes a reset mechanism. Always take proper precautions and consult with someone knowledgeable in electronics if you're unfamiliar with these components or concepts.
This is Awsome, and of course it would need to be stream lined by Experimentation but it does show the simplicity of the Circuit... Thanks Joel Let me try!
(08-20-2023, 12:17 AM)Kapompi Wrote: [ -> ]This is Awsome, and of course it would need to be stream lined by Experimentation but it does show the simplicity of the Circuit... Thanks Joel Let me try!

I'd also like to draw the schematic once I have some time!   Cool