Hi, RonV;
The measured inductance for the 4.6 ohm coil is 3.66mh.
Would you display the schematic you are using so I can try it in LTSpice? It was cut off on the bottom of your attachment.
In my system a boost converter charges the capacitor up to desired discharge voltage. This takes about 7 seconds. At discharge the primary energy source is the capacitor.
Please explain your sweet spot. I've laid out three scenarios that I would like to try. Each is based on a 2 millisecond discharge period. Scenario #1 is the actual layout I have built:
#1 is existing scenario with a 100 uf capacitor charged to 160 volts. The coil is 276 turns of #29 wire with a measured resistance of 4.6 ohms. Max current draw is about 12 amps. The discharge characteristics are in the graph in prior posts.
#2 is a new scenario with a 560 uf capacitor charged to 80 volts. The coil is 139 turns of #26 wire with a calculated resistance of 1.14 ohms. Max current draw is about 24 amps.
#3 is a new scenario with a 2200 uf capacitor charged to 40 volts. The coil is 69 turns of #23 wire with a calculated resistance of 0.21 ohms. Max current draw is about 48 amps.
Notice that I wind a new coil for each scenario. As stated earlier the duty cycle is less than 1% so heat buildup is not a limiting factor. I haven't calculate the inductance for coils in scenarios #2 and #3. Because my coils have a ferrous core the standard formula doesn't apply.
As I change the coil inductance and voltage at full charge, I would expect the voltage and current discharge curves to change. I would like to simulate those curves.
Thanks for the input.
The measured inductance for the 4.6 ohm coil is 3.66mh.
Would you display the schematic you are using so I can try it in LTSpice? It was cut off on the bottom of your attachment.
In my system a boost converter charges the capacitor up to desired discharge voltage. This takes about 7 seconds. At discharge the primary energy source is the capacitor.
Please explain your sweet spot. I've laid out three scenarios that I would like to try. Each is based on a 2 millisecond discharge period. Scenario #1 is the actual layout I have built:
#1 is existing scenario with a 100 uf capacitor charged to 160 volts. The coil is 276 turns of #29 wire with a measured resistance of 4.6 ohms. Max current draw is about 12 amps. The discharge characteristics are in the graph in prior posts.
#2 is a new scenario with a 560 uf capacitor charged to 80 volts. The coil is 139 turns of #26 wire with a calculated resistance of 1.14 ohms. Max current draw is about 24 amps.
#3 is a new scenario with a 2200 uf capacitor charged to 40 volts. The coil is 69 turns of #23 wire with a calculated resistance of 0.21 ohms. Max current draw is about 48 amps.
Notice that I wind a new coil for each scenario. As stated earlier the duty cycle is less than 1% so heat buildup is not a limiting factor. I haven't calculate the inductance for coils in scenarios #2 and #3. Because my coils have a ferrous core the standard formula doesn't apply.
As I change the coil inductance and voltage at full charge, I would expect the voltage and current discharge curves to change. I would like to simulate those curves.
Thanks for the input.