Invention Grant
- Patent Title: Driver circuit, corresponding device and method of operation
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Application No.: US17355055Application Date: 2021-06-22
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Publication No.: US11476845B2Publication Date: 2022-10-18
- Inventor: Marco Giovanni Fontana , Marco Riva , Francesco Pulvirenti , Giuseppe Cantone
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group LLP
- Priority: IT102020000016072 20200702
- Main IPC: H03K5/151
- IPC: H03K5/151 ; H03K17/16 ; H03K17/687 ; H03K17/06 ; H03K17/0812

Abstract:
A circuit comprises first and second input supply nodes configured to receive a supply voltage therebetween. The circuit comprises a high-side driver circuit configured to be coupled to a high-side switch and produce a first signal between first and second high-side output nodes. The circuit comprises a low-side driver circuit configured to be coupled to a low-side switch and produce a second signal between first and second low-side output nodes. The circuit comprises a floating node configured to receive a floating voltage applied between the floating node and the second high-side output node, a bootstrap diode between the first input supply node and an intermediate node, and a current limiter circuit between the intermediate node and the floating node and configured to sense the floating voltage and counter a current flow from the intermediate node to the floating node as a result of the floating voltage reaching a threshold value.
Public/Granted literature
- US20220006450A1 DRIVER CIRCUIT, CORRESPONDING DEVICE AND METHOD OF OPERATION Public/Granted day:2022-01-06
Information query
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