HALF-BRIDGE GATE DRIVER CIRCUIT

摘要

A half-bridge gate driver cicuit including two separate floating high-side driver cicuits (8 and 8') for operating a switch cicuit having a high-side switch (7) and a low-side swich (9). Each of the driver cicuits (8 and 8') include input control logic wich is referenced to a supply signal with a potential that becomes negative relative to the negative common terminal (12) of the switches, thereby enchancing the operation of the switch cicuit. The circuit may further include signal translation stages (70) for translation control signals to the control logic of the driver cicuits (8 and 8'). The signal translation stages (70) include a plurality of cascoded parasitic transistor (71) which provide a neutralizing capacitance to minimize noise.