Switching System, a Zero Power Standby Solution
Abstract
This paper describes a novel standby system. The actual power consumption in standby mode is zero Watts. In this standby system the appliance is completely disconnected from it mains supply during standby mode. In addition from saving on electricity costs, it also has the added benefit of preventing hazardous situations whilst in standby mode. This novel standby system will set a new goal for manufacturers of consumer products to achieve.
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Introduction
Standby power is a major concern for power companies, and for consumers. Consumers are becoming aware of how much it costs to have appliances in standby. Governments have introduced energy rating labels on products. Standby goals and guidelines are produced by minimum performance standards (MEPS) for a number of different products. The International Energy Agency (IEA) has started the” One Watt Initiative” which aims to reduce standby power to not more than 0.5W. In order to have a common way of measuring standby power, IEC standard 62301 was developed. The challenge is how to reduce standby power. A number of different techniques have been developed. This paper will describe a “standby” solution which achieves zero power consumption. With this new system, the appliance is completely disconnected from the mains supply, when switched off by remote control. Once switched off the remote control can be used to the appliance on again.
Conclusion
The switching circuit has many advantages over current standby systems. Its greatest advantage is that it is an on-off system. Unlike other standby solutions, it is completely isolated from the mains supply when the appliance is not in use. The appliance can be switched on or off from the comfort of one’s armchair, with the aid of a remote control unit. Other benefits are that no energy is consumed in the off state, and that some of the implementations, if designed correctly will result in better EMI performance, and it will make the appliance safer. A benefit of switching the appliance off is that the micro controllers and system busses get reset on power on. This standby solution is cost effective, reliable, and improves safety.