Gate driving device
The gate driving device addresses the challenge of adjusting circuit constants by using a series connection of transistors and capacitors within the gate driver IC, allowing for efficient negative bias application and turn-off speed control, thus improving the performance of semiconductor switching devices.
JP2025091920APending Publication Date: 2025-06-19MITSUBISHI ELECTRIC CORP
Patent Information
- Application Number
- JP2023207475
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-06-19
Smart Images
Figure 2025091920000001_ABST
Abstract
To provide a gate driving device that can adjust the constant of a circuit element in accordance with a transistor to drive.SOLUTION: A gate driving device according to the present disclosure includes first and second transistors connected in series between a first node with a first voltage and a second node with a second voltage that is lower than the first voltage and configured to operate complementarily with a connection node serving as an output node of the gate driving device, a first charge transistor and a first negative bias transistor connected in series between the first node and a third node with a third voltage that is lower than the first voltage and higher than the second voltage and having a connection node connected to a capacitor node connected to one electrode of a first capacitor provided outside, a gate driver circuit including a logic circuit that controls each transistor, the first capacitor, and a first diode having an anode connected to the other electrode and the second node and having a cathode connected to the third node.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
Gate driving circuit
JP2009200891A