18424266. SWITCH DRIVING DEVICE simplified abstract (ROHM CO., LTD.)

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SWITCH DRIVING DEVICE

Organization Name

ROHM CO., LTD.

Inventor(s)

Kenji Hama of Kyoto (JP)

Takahiro Kotani of Kyoto (JP)

SWITCH DRIVING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18424266 titled 'SWITCH DRIVING DEVICE

Simplified Explanation: The patent application describes a switching drive device that includes a driver, a current limiter, and a current controller. The current limiter limits the current fed to a boot capacitor in a bootstrap circuit, and the current controller drives the current limiter to limit the current when the charge voltage across the boot capacitor exceeds a threshold value.

  • The switching drive device includes a driver to operate an N-type semiconductor switch element.
  • A current limiter is integrated to restrict the current supplied to the boot capacitor in the bootstrap circuit.
  • A current controller manages the operation of the current limiter, activating it to limit the current to the boot capacitor when the charge voltage surpasses a set threshold.

Potential Applications: 1. Power electronics systems 2. Motor control applications 3. Renewable energy systems

Problems Solved: 1. Prevents overcharging of the boot capacitor 2. Ensures efficient operation of the semiconductor switch element 3. Enhances the reliability of the switching drive device

Benefits: 1. Improved efficiency in power electronics 2. Enhanced system reliability 3. Optimal performance of motor control applications

Commercial Applications: The technology can be utilized in various industries such as electric vehicles, renewable energy systems, and industrial automation for efficient power management and control.

Prior Art: Readers can explore prior patents related to semiconductor switch elements, current limiters, and bootstrap circuits to gain a deeper understanding of the technology.

Frequently Updated Research: Stay updated on advancements in power electronics, semiconductor devices, and motor control systems to enhance the application of this technology.

Questions about Switching Drive Device: 1. How does the current limiter prevent overcharging of the boot capacitor? 2. What are the potential commercial applications of this technology in the renewable energy sector?


Original Abstract Submitted

For example, the switching drive device includes a driver configured to drive an N-type semiconductor switch element, a current limiter configured to limit a current fed to a boot capacitor BC included in a bootstrap circuit BTC, and a current controller configured to control the operation of the current limiter . The current controller is configured to drive the current limiter to limit the current fed to the boot capacitor BC when the charge voltage across the boot capacitor BC is higher than a threshold value.