Chicony Power Technology Co., Ltd.

National Yang Ming Chiao Tung University

Che-Hao Chang

Tzu-Hung Wang

Zhi-Hong Lu

Jenn-Hwan Tarng

Chi-Yang Chang

Wei-Yuan Chen

Chiuan-Shing Wu

Jing-Cheng Hong

Meng-Chi Yang

Hai-Wen Chang

A signal line conversion structure of the antenna array is disposed between the antenna array and the circuit substrate, which includes a first dielectric substrate is disposed on the circuit substrate, a second dielectric substrate is vertically disposed on the first dielectric substrate and divided into a first region and a second region, and the second dielectric substrate is provided with the antenna array. At least one signal line is disposed on the first region and extends to the second dielectric substrate for connecting the circuit substrate and the antenna array. A metal connecting plate has at least three metal through holes pierced in the first dielectric substrate and connected to the second ground layer. The metal connecting plate is connected to the first ground layer of the first dielectric substrate and the second ground layer of the second dielectric substrate through the metal through holes.

Signal line conversion structure of antenna array

A power supply apparatus with a protection function includes a pulse width modulation control unit, a pulse width modulation detecting unit, a switch unit and a feedback circuit. The feedback circuit detects a bus voltage. When the feedback circuit detects that the bus voltage is greater than a predetermined voltage, the feedback circuit sends an informing signal to the pulse width modulation control unit. The pulse width modulation control unit adjusts a duty cycle of a pulse width modulation signal and sends the pulse width modulation signal to the pulse width modulation detecting unit. When the pulse width modulation detecting unit detects that the duty cycle of the pulse width modulation signal is less than a predetermined cycle, the pulse width modulation detecting unit turns off the switch unit to stop outputting power to avoid a reverse current phenomenon.

Power supply apparatus with protection function and redundant power supply system

A power supply apparatus includes a rectification circuit, a power factor correction circuit, an auxiliary boost circuit and a direct current to direct current conversion circuit. The auxiliary boost circuit includes an input contact, an output contact, a voltage detection unit, a control unit, a boost unit and a boost bypass unit. When a voltage value of a power factor correction power is not greater than a predetermined voltage value, the control unit is configured to turn off the boost bypass unit and turn on the boost unit, so that the boost unit boosts the power factor correction power and then the power factor correction power is sent to the direct current to direct current conversion circuit through the boost unit and the output contact.

Power supply apparatus with auxiliary boost circuit

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Taipei, Taiwan

Che-Hao Chang