Nothing concrete. Just thought if you could get all the power going through energy storage devices, could it be done with capacitors alone? I have yet to figure out if it is possible. I am thinking it is not.

Fair enough. Asking yourself a question, you don't know the answer to, is a great way to discover things that you did not know. Good luck on your quest.

 

if you could get all the power going through energy storage devices

Think of a device that stores energy, not voltage but in current.

 

Take the capacitor out, and it becomes PWM, which is highly efficient

But for regulating voltage, only if it has an inductor on the output.

 

Just thought if you could get all the power going through energy storage devices, could it be done with capacitors alone?

There are some switched-capacitor voltage converter ICs available, but they can only deliver a couple hundred mA.

 

There are some switched-capacitor voltage converter ICs available, but they can only deliver a couple hundred mA.

Nice! A lot of my applications only need a few hundred mA. Can you provide some part numbers?

 

There are some switched-capacitor voltage converter ICs available, but they can only deliver a couple hundred mA.

I found some, interesting ideas:

https://www.digikey.com/en/products...0kbPmJlKIWKw7dIfQaInSQAWlopFUQQFc15SFQCsrSa6A

 

I found some, interesting ideas:

A Google search for "Switched capacitor voltage regulators" may turn up a few more.

 

Here is a selection of regulated charge pumps from Maxim. Their original product the MAX232 used this circuit to make RS-232 voltage levels from a TTL +5V supply

Charge Pump - Charge Pump ICs | Maxim Integrated

Also read about the Cockcroft-Walton Voltage Multiplier

Cockcroft–Walton generator - Wikipedia