18457671. SWITCHING POWER SUPPLY, AMPLIFICATION DEVICE, AND COMMUNICATION DEVICE simplified abstract (Fujitsu Limited)

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SWITCHING POWER SUPPLY, AMPLIFICATION DEVICE, AND COMMUNICATION DEVICE

Organization Name

Fujitsu Limited

Inventor(s)

Tatsuya Hirose of Yokohama (JP)

SWITCHING POWER SUPPLY, AMPLIFICATION DEVICE, AND COMMUNICATION DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18457671 titled 'SWITCHING POWER SUPPLY, AMPLIFICATION DEVICE, AND COMMUNICATION DEVICE

Simplified Explanation

The abstract describes a patent application for a switching power supply that adjusts the dead time between turning on the upper arm and lower arm of the power supply circuit based on the voltage of the input signal.

  • The switching power supply circuit has an upper arm and a lower arm coupled in series.
  • The drive circuit alternately turns on the upper arm and the lower arm across a dead time.
  • The output voltage follows the voltage of the input signal, which is an envelope signal or a subcarrier signal.
  • The adjustment circuit adjusts the dead time based on the voltage of the input signal.

Potential Applications

This technology could be applied in various power supply systems, such as in telecommunications equipment, industrial machinery, and consumer electronics.

Problems Solved

1. Efficient power conversion with optimized dead time adjustment. 2. Improved voltage regulation and stability in power supply circuits.

Benefits

1. Enhanced performance and reliability of power supply systems. 2. Increased efficiency and reduced energy consumption. 3. Precise voltage control for sensitive electronic devices.

Potential Commercial Applications

"Optimized Dead Time Adjustment in Switching Power Supplies for Improved Efficiency and Performance"

Possible Prior Art

There may be prior art related to dead time adjustment in switching power supplies, but specific examples are not provided in the abstract.

Unanswered Questions

How does the adjustment circuit precisely determine the optimal dead time based on the input signal voltage?

The abstract mentions that the adjustment circuit adjusts the dead time according to the voltage of the input signal, but it does not elaborate on the specific method or mechanism used for this adjustment.

Are there any limitations or constraints in the implementation of this technology in different types of power supply systems?

While the abstract highlights the benefits of the technology, it does not address any potential challenges or restrictions that may arise when integrating this innovation into various power supply applications.


Original Abstract Submitted

A switching power supply includes a switching power supply circuit that has an upper arm and a lower arm that are coupled in series. The switching power supply further includes a drive circuit that alternately turns on the upper arm and the lower arm across a dead time in which the upper arm and the lower arm are turned off such that an output voltage of the switching power supply circuit follows a voltage of an input signal that is an envelope signal or a subcarrier signal; and an adjustment circuit that adjusts the dead time according to the voltage of the input signal.