Design and implementation of a socket with low standby power

Author

Tsai, Cheng-Hung ; Bai, Ying-Wen ; Wang, Hao-Yuan ; Lin, Ming-Bo

Author_Institution

Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan

Volume

55

Issue

3

fYear

2009

fDate

8/1/2009 12:00:00 AM

Firstpage

1558

Lastpage

1565

Abstract

Turned-off electric home appliances generally still require standby power when they are plugged in. In this paper we present a way to reduce the standby power of a socket. Our socket supplies the appliances with power when the user turns them on. When the user turns them off, our socket shuts the electric power off and reduces the standby power to zero. Our design, which uses a microcontroller unit (MCU), receives signals from a pyroelectric infrared (PIR) sensor which detects the user approaching the socket. A power detector provides an MCU to control the solid state relay (SSR) On/Off when used as an appliance switch for shutting off the standby power. The components we use are very inexpensive and consume only 0.2 W. The MCU monitoring program provides both automatic detection of the user by the PIR sensor and detection of power consumption.

Keywords

domestic appliances; energy conservation; infrared detectors; microcontrollers; power consumption; power supplies to apparatus; pyroelectric detectors; semiconductor relays; electric home appliances; electric socket; low standby power; microcontroller unit; power consumption; power detector; pyroelectric infrared sensor; solid state relay; Automatic control; Home appliances; Infrared detectors; Infrared sensors; Microcontrollers; Pyroelectricity; Signal design; Sockets; Solid state circuits; Switches; Electric Home Appliances; PIR; Power Consumption; SSR; Standby Power;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2009.5278027

Filename

5278027