1. REDUCE THE STANDBY POWER CONSUMPTION OF A
MICROWAVE OVEN
ABSTRACT
A touch panel microwave oven which is turned off does not mean that it is not
consuming electric power. Although it is turned off, it still consumes 1 to 3 W when it is
plugged into an ac socket. In this design the touch panel microwave oven consumes 3mW
when it is turned off and yet plugged in. A more effective circuit design for a touch panel
microwave oven is proposed to reduce the standby power consumption, which is also easy to
apply to future products. This power consumption in the standby state is lower than that of
others and not only simple to set up but also inexpensive.
EXISTING SYSTEM
A microwave oven is a kitchen appliance that heats food by dielectric heating, using
microwave radiation to excite polarized molecules within the food. Recently most microwave
ovens have touch panels. But, unfortunately the power is not completely cut off when the
oven is not used. The oven, which contains a clock, memory and a microcontroller, consumes
electric power whenever it is plugged in, even though the oven is turned off. Most microwave
ovens are plugged in 24 hours a day, 7 days a week. While such standby power often does not
seem to amount to much, it really adds up. In some cases, a touch panel microwave oven
consumes on the average more power for standby each year than for cooking. Many electric
appliances have standby power consumption amounting to around 10%of a household’s total
power. Therefore much research has been done into reducing standby power consumption in

2. appliances and equipment by way of home energy management systems which both monitor
and control the devices and are based on complex architecture.
PROPOSED SYSTEM
In the proposed system, reduce the standby power consumption of a microwave oven.
By using the current sensor, the current which is passing through wire and if it is not
necessary and it will be automatically switch off through the switching. By using this
proposed system power consumption will be advantages. By our proposed system, the human
effect also been reduced.
BLOCK DIAGRAM
POWER
SUPPLY
DOOR
SWITCH
CURRENT
Sensor
AC/DC
CONVERTER
CPU
ARM
MICROCONTROLLER
LCD Display
Module
HARDWARE REQURIMENT
1. ARM-Controller
2. Current sensor
3. AC/DC Convertor
4. LCD Display Module
RELAY
MICROWAVE
OVEN

3. 5. Microwave Oven
6. Relay
7. Power Supply
SOFTWARE REQURIMENT
1. Keil IDE
2. Flash magic