Bridge circuit for controlling inductive load using MOSFETs has at least one transistor of each series transistor pair provided with floating or high ohmic body zone

摘要

The bridge circuit has 4 MOSFETs (T1,T2,T3,T4) connected in respective bridge arms for providing 2 series transistor pairs across the supply voltage terminals (EK1,EK2), with the load terminals (AK1,AK2) provided by the intermediate nodes between the series transistors of each pair. At least one transistor of each pair has a floating or high ohmic body zone, with a diode (D1,D2,D3,D4) connected between its source (S) and gate (G) terminals.