The Essence of Power Supply — An Analysis from the Perspective of World Quantum Theory

In mainstream physics, a power supply is defined as a device that provides electromotive force. Starting from the axioms of World Quantum Theory (WQT), this paper redefines the power supply: a power supply is a structure that maintains a stable difference between two frequency anchors (f+,f−) in the projection layer. Voltage is the macroscopic external reading of this frequency difference, with its specific numerical value determined by environmental coupling conditions; current is the reading of energy flow; the work done by the power supply is to compensate for lock frequency loss and maintain the stability of Δf. This paper uniformly explains the essence of different types of power supplies such as batteries, generators, and solar cells, and points out that an ideal voltage source is a lock frequency structure with constant Δf, while an ideal current source is a lock current structure with constant energy flow.