[Septillion] and [Hugatry] have come up with a hack to manipulate a USB charger into becoming a variable voltage source. Their project QC2Control works with chargers that employ Quick Charge 2.0 ...

In his video [Afroman] describes how the LM317 can be used to regulate current rather than voltage to provide a constant current source under varying load. This can useful for a number of ...

It’s a precision current source. The series connection subtracts an internal 1.24-V precision reference from the external voltage input on the CATHODE pin. The internal op-amp subtracts the voltage ...

It is a simple to configure and operate block, combining good parameters accuracy, small area and low current consumption. The block consists of bandgap, buffer and current sources. The bandgap ...

The patented algorithm operates the inverter as a voltage source, which is critical when short circuits and voltage drops complicate grid operation. Traditionally, power plants using steam ...

If there are two resistors in series across a voltage source, then the circuit is a voltage divider. A voltage divider consisting of two \(500 Ω\) resistors is connected across a \(9V\) battery.

Save guides, add subjects and pick up where you left off with your BBC account. The voltage across the ends of the cell is called the terminal potential difference, \(V_{tpd}\). \(V_{tpd}\) ...