Luckily, [Paul] sent in a great tutorial on building a LiPo charger that works over USB. The board [Paul] came up with is incredibly small – just barely larger than the USB plug itself.

There are many, but for this post, I’m going to take you inside a Dickson charge pump. This is Circuit VR because not only are we going to discuss the circuit, we’ll look at an LT Spice ...

While a higher output alternator is the common cure, it’s a good idea to first test the existing charging system circuit to ...

One coulomb of charge is equivalent to 6,250,000,000,000,000,000 electrons. In a closed circuit that includes a source of potential difference (voltage) there will be a current flowing around the ...