The invention discloses a controller circuit for a
wireless power transmission system. The controller circuit comprises a circuit board, and a
microprocessor module, two groups of current sampling modules, two groups of
voltage sampling modules, a can communication module and a PWM module which are installed on the circuit board. The two groups of current sampling modules, the two groups of
voltage sampling modules, a logic conversion circuit and the can communication module are connected with the
microprocessor module through wiring of the circuit board. The two groups of current sampling modules are respectively connected to the logic conversion circuit through respective
signal isolation circuits, the logic conversion circuit is connected to the PWM module, the PWM module is connected to an
inverter circuit or a DC /
DC converter, and the current sampling modules and the
voltage sampling modules are connected to a primary side or a
secondary side of the
wireless power transmission system. Strong and weak
electricity electrical isolation is realized, the influence of high-
frequency noise in a main circuit on a detection
signal is reduced, and the working performance is stable; thecontroller circuit is simple in circuit composition, is especially suitable for
mass production, and has hardware and
software dual protection effects on
overcurrent and
overvoltage.