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Block-diagram-of-microwave-oven, the block diagram of a microwave oven is given in fig. 50.6. the mains plug and socket are three-pin earthing type. the fast blow ceramic fuse is of 15 a, 250 v. interlock switches are linked with the oven door. power will be applied to the mains transformer only when the oven door is closed.. Fig. 1: block diagram of microwave oven circuit and working. the circuit diagram of the microwave oven is shown in fig. 2. it is built around 5v voltage regulator 7805 (ic1), microcontroller (mcu) at89c52 (ic2), four 12v relays (rl1 through rl4), five pnp transistors (bc557), 14 tactile switches, one 16×2 line lcd (lcd1) and a few discrete ..., even with a dizzying array of options and functions, most microwave ovens still share a common design underneath all the lights and buttons. understanding the underlying mechanism helps you both maintain your microwave oven in proper working order and diagnose problems correctly when they occur..

Diagram of microwave oven. reviews of microwave convection ovens. diagram of microwave oven microwave oven a microwave oven, or simply a microwave, is a kitchen appliance that cooks or heats food by dielectric heating. this is accomplished by using microwave radiation to heat water and other polarized molecules within the food. an appliance for cooking…, how microwave ovens work. the invention of the microwave is a fantastically simple concept. microwaves have a frequency that can penetrated water, fat, and sugar molecules and excite them. for a molecule to be excited the electrons "orbiting" the nucleus have to jump up energy levels..

A microwave oven, commonly referred to as a microwave, is a kitchen appliance that heats and cooks food by exposing it to electromagnetic radiation in the microwave spectrum.this induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating.microwave ovens heat foods quickly and efficiently because excitation is fairly uniform in the outer 25 ..., thanks for sharing. usually there are schematic on the side cover of almost every microrwave oven. this is nice one. i love it that is tells you the color of the cable. one thing you need to make note on the schematic. sometimes the motor come in dc voltage and sometimes ac voltage. so pay extra attention when replacin it. usually it is written on it..

Foreword read this manual carefully. failure to adhere to or observe the information in this manual may result in exposing yourself to the microwave energy normally contained within the oven cavity., microwave oven 1. lecture-4 microwave oven 2. what are microwaves? microwaves are a form of electromagnetic energy, like light waves or radio waves. its frequency range is from 300 mhz (0.3 ghz) to 300 ghz. microwaves are used extensively in communications. good for transmitting information because it can penetrate haze, light rain and snow, clouds, and smoke. also used in radars and in ....

In a completed microwave oven, the magnetron tube creates the microwaves, and the waveguide directs them to the stirrer fan. in turn, this fan points the waves into the oven cavity where they heat the food inside. 7 the circuit that produces the voltage required to operate the magnetron tube consists of a large transformer, an oil-based ...

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