Phyu Hnin Khaing

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This paper describes the design considerations of microcontroller based process control for washing machine. In this paper, AT89S51 microcontroller is used to control the process of washing cycle and to drive the external output devices such as water inlet valve, wash motor, water drain valve. The control strategy program for AT89S51 microcontroller is(More)
This paper describes the design considerations and construction of digital wattmeter. The system describes the current drawn by the load flows through parallel-connected resistors, which turn the current into a proportional voltage. Then amplified and applied to the one input of four-quadrant multiplier. The voltage divider resistors sense voltage across(More)
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