- #1
JustinH
- 9
- 0
Hi all,
I am trying to design a low power dissipation driver circuit. Basically the circuit gets a 1v digital signal which tells it whether to apply a separate DC power source of 100v across a 1nF capacitor. This digital signal is modulated at about 100kHz and will change at about 50kHz. The 100v source is either DC batteries in parallel or DC batteries stepped up with a transformer.
The problem at hand is designing the circuit to use as little power as possible. I've done calculations, and it seems with a simple circuit, 250mW is used on the cap. I've done some research and am interested in energy recovery from the cap when it empties to be reused to fill it when the signal comes to fill it back up. Someone said that perhaps flyback transformers could help, but they weren't too sure. I was thinking perhaps using an LC "tank" to hold the energy while the load cap was discharged, but wasn't sure of the viability. Also, what kind of switching would you guys recommend?
Any ideas would be appreciated, just kind of looking around right now and researching the project.
~Justin
I am trying to design a low power dissipation driver circuit. Basically the circuit gets a 1v digital signal which tells it whether to apply a separate DC power source of 100v across a 1nF capacitor. This digital signal is modulated at about 100kHz and will change at about 50kHz. The 100v source is either DC batteries in parallel or DC batteries stepped up with a transformer.
The problem at hand is designing the circuit to use as little power as possible. I've done calculations, and it seems with a simple circuit, 250mW is used on the cap. I've done some research and am interested in energy recovery from the cap when it empties to be reused to fill it when the signal comes to fill it back up. Someone said that perhaps flyback transformers could help, but they weren't too sure. I was thinking perhaps using an LC "tank" to hold the energy while the load cap was discharged, but wasn't sure of the viability. Also, what kind of switching would you guys recommend?
Any ideas would be appreciated, just kind of looking around right now and researching the project.
~Justin