Universal Scientific Industrial (shanghai) Co., Ltd.

Universal Scientific Industrial Co., Ltd.

Universal Global Scientific Industrial Co., Ltd.

Yung-Chih Huang

Chieh-Jung Li

Ta-Te Hsieh

An pop noise eliminating circuit includes a power source, a grounding terminal, a speaker, an audio amplifier that has two opposite ends respectively connected with the power source and the first end of the speaker, a delay unit that has one end electrically connected with the power source, a first power control switch that has a control end electrically connected with the delay unit, a first conduction end electrically connected with the other end of the speaker, and a second power control switch that has a control end electrically connected with the delay unit, a first conduction end electrically connected with the grounding terminal, and a second conduction end electrically connected with a second conduction end of the first power control switch.

Pop noise eliminating circuit that disables an audio output device when turning the device on

A resettable short circuit protection configuration includes a power input terminal, a power output terminal, a first electrically controlled switch, which has a control end and two conducting ends, the two conducting ends being respectively electrically connected to the power input terminal and the power output terminal, a second electrically controlled switch, which has a control end and two conducting ends, the two conducting ends being respectively electrically connected to the power input terminal and the control end of the first electrically controlled switch, a first resistor, which has two opposite ends respectively electrically connected to the control end of the first electrically controlled switch and a grounding terminal, and a second resistor, which has two opposite ends respectively electrically connected to the control end of the second electrically controlled switch and the power output terminal.

Growing community of inventors

Changhua County, Taiwan

Yung-Chih Huang