Induction electricity-taking device that power was trailed

The utility model provides an induction electricity-taking device that power was trailed, by the iron core, it can the coil to get, adjustable transformer, the rectifier regulator module, the induction electricity-taking device is formed to power sampling circuit and load matching feedback control circuit, on the iron core get can the winding connection adjustable transformer's primary, adjustable transformer's secondary coil has a plurality of to take a percentage, the load matching feedback control circuit adjusts of regulation through connecting who takes a percentage, adjustable transformer output terminal after the regulation connects the rectifier regulator module, carry behind rectifier regulator and give the load, there is power sampling circuit between rectifier regulator module and the load, power sample signal transfer to load matching feedback control circuit, load matching feedback control circuit control adjustable transformer secondary coil's the number of turns is adjusted and is carried out the power tracking, the internal resistance that realizes load equivalent impedance and get the electric coil is matchd and is equalled, realization power is trailed, make the output maximize.