- on Miscellaneous Electronics
- Published in issue 7/2010 on page 49
Economical On/Off Power Switch
(Summer Circuits 2010 article)
Many appliances these days are switched on and off with the simple push of a 'soft' on/off button. In the 'off' position the appliance is merely in the sleep state and continues to use a small amount of energy — and that is just 'not done' nowadays. This circuit not only retains the feature of switching on and off with one simple pushbutton but also reduces the power consumption in the off-state to zero.