The invention discloses a multi-channel independent
current limiting output single-
chip intelligent power supply with a load state detection function. The power supply solves the problem that an existing movable power supply is large in size, high in cost and poor in safety. The intelligent power supply comprises a
USB input interface, an MOS tube T1, an MOS tube T2, an MOS tube T3 and a control
chip IC, wherein the MOS tube T1, the MOS tube T2, the MOS tube T3 and the control
chip IC are connected with the
USB input interface after being sequentially connected, the control chip IC comprises a central controller MCU and at least one load state detection and
current limiting output unit connected with the central controller MCU, one end of the load state detection and
current limiting output unit is connected between the MOS tube T1 and the MOS tube T2, and the other end of the load state detection and current limiting output unit is connected with an external load. The load state detection and current limiting output unit is arranged in the control chip IC, so that states, such as
insertion, plugging, short-circuit,
overcurrent, of each load can be detected independently, complete impendence of multi-channel output is achieved, cost is low, safety is high, expansibility is high, and the power supply is very suitable for being popularized and used in a large scale.