GATE DRIVER CIRCUIT

Organization Name

rohm co., ltd.

Inventor(s)

Hisashi Sugie of Kyoto-shi (JP)

GATE DRIVER CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240283445 titled 'GATE DRIVER CIRCUIT

The present disclosure introduces a gate driver circuit with unique features.

External resistor connected to setting pin
High-side dead time circuit generating control signals
Analog delay circuit delaying control signal based on resistor value
Selector choosing control signal based on setting pin state

Potential Applications: - Power electronics - Motor control systems - Inverters - Switching power supplies

Problems Solved: - Efficient control of high-side switches - Minimization of dead time errors - Precise timing in power circuits

Benefits: - Improved reliability - Enhanced performance - Cost-effective solution

Commercial Applications: Title: "Advanced Gate Driver Circuit for Power Electronics" This technology can be utilized in industries such as automotive, renewable energy, and industrial automation for enhancing the efficiency and reliability of power systems.

Prior Art: Readers can explore existing patents related to gate driver circuits, high-side dead time circuits, and analog delay circuits to understand the background of this innovation.

Frequently Updated Research: Researchers are constantly working on optimizing gate driver circuits for various applications, including high-power systems and electric vehicles.

Questions about Gate Driver Circuit: 1. How does the external resistor impact the delay time in the circuit? 2. What are the key advantages of using a selector in the control signal generation process?

Original Abstract Submitted

the present disclosure provides a gate driver circuit. an external resistor is connected to a setting pin. a high-side dead time circuit is configured to receive a first high-side control signal and generate a second high-side control signal. an analog delay circuit is configured to delay the first high-side control signal by a delay time corresponding to a resistance value of the external resistor to generate a delayed high-side control signal. a selector is configured to receive the first high-side control signal and the delayed high-side control signal, select one according to an electrical state of the setting pin, and output the selected signal as the second high-side control signal.