The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2001
Filed:
Jan. 03, 2000
Chihao Xu, M{umlaut over (u)}nchen, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A drive circuit for a controllable semiconductor component, in particular for switching on a high-side MOS power transistor. The semiconductor component is connected to a first reference potential at its first main terminal and to a load at its second main terminal. The load furthermore is connected to a second reference potential. The drive circuit has a control signal generating device for generating a control signal for switching the controllable semiconductor component on and off. A capacitor device is provided which is connected to the first reference potential at its first terminal via a diode for the purpose of charging and is connected to the second main terminal of the semiconductor component at its second terminal. The drive circuit has a controllable switching device that is connected between the first terminal of the capacitor device and the control terminal of the semiconductor component. The control terminal of the switching device is connected to the second main terminal of the semiconductor component and can be controlled in such a way that it feeds a charge stored in the capacitor device to the control terminal of the semiconductor component in the switched-on state, and does not do so in the switched-off state. A switching control device for controlling the switching device in response to the control signal of the control signal generating device is also provided.