Patents by Inventor Pai-Shih Chiu

Pai-Shih Chiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Power amplifier without a transformer
    Patent number: 9680424
    Abstract: A power amplifier without transformer includes an audio isolator, a phase detector, a power protection controller, a rectifier and an amplifier. The audio isolator is used to isolate audio-source input end and the amplifier for making the amplifier directly connected to utility power via the rectifier without transformer to increase transformation efficiency and decrease weight and bulk of the power amplifier substantially. The phase detector is used to detect utility power phase whether correct. The power protection controller is used to determine utility power whether supply to the amplifier for preventing the amplifier from broken caused by excessive current.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: June 13, 2017
    Assignee: JIN TAI DE TECHNOLOGY CO., LTD.
    Inventor: Pai-Shih Chiu
  • POWER AMPLIFIER WITHOUT TRANSFORMER
    Publication number: 20160352291
    Abstract: A power amplifier without transformer includes an audio isolator, a phase detector, a power protection controller, a rectifier and an amplifier. The audio isolator is used to isolate audio-source input end and the amplifier for making the amplifier directly connected to utility power via the rectifier without transformer to increase transformation efficiency and decrease weight and bulk of the power amplifier substantially. The phase detector is used to detect utility power phase whether correct. The power protection controller is used to determine utility power whether supply to the amplifier for preventing the amplifier from broken caused by excessive current.
    Type: Application
    Filed: January 11, 2016
    Publication date: December 1, 2016
    Inventor: Pai-Shih Chiu