18747827. HALF-BRIDGE CIRCUIT FOR TWO-WIRE BUSES (STMicroelectronics International N.V.)

HALF-BRIDGE CIRCUIT FOR TWO-WIRE BUSES

Organization Name

STMicroelectronics International N.V.

Inventor(s)

Denis Cottin of Crolles (FR)

HALF-BRIDGE CIRCUIT FOR TWO-WIRE BUSES

This abstract first appeared for US patent application 18747827 titled 'HALF-BRIDGE CIRCUIT FOR TWO-WIRE BUSES

Original Abstract Submitted

The present disclosure relates to a half-bridge circuit comprising first and second PMOS transistors in series between the first node and an intermediate node, a third PMOS transistor and a fourth NMOS transistor in series between the intermediate node and the second node, and a control circuit. The control circuit comprises a bootstrap charge pump. The charge pump comprises a capacitive element having a first electrode coupled with the gate of the third transistor. The charge pump is configured to charge the capacitive element from the intermediate node and without a clock signal. The present application also relates to a device comprising two identical half-bridge circuits connected to two respective conductors of a bus.