Activity Building The Half Wave Rectifier

With the three-phase AC alternator assembled, it's time to construct the half wave rectifier circuit on your Board's prototyping area. You can remove all but the A/D Converter circuit from the breadboard area since we are done with the DC portion of our experiments.

Parts Required

This experiment uses the A/D converter, and adds to it:

(1) 1N4148 diode (1) 1 kQ resistor

(1) Assembled wind turbine (three-phase, wind driven AC alternator) (1) Table fan (not supplied) Wire strippers (not supplied)

V Remove all but the A/D Converter Circuit from your breadboard.

V Build the Half-Wave Rectifier circuit shown in Figure 5-12, setting aside the 1000 ^F capacitor for the moment.

V If necessary, use your wire strippers to expose on the ends of the orange wire and the orange-white wire.



Schematic Half Wave Converter
Figure 5-12: Half Wave Rectifier Schematic

V Check your parts placement against the wiring diagram shown in Figure 5-13.

We will be using the CH3 A/D converter input (pin 6) for our tests. As its name implies, the three-phase AC alternator has three sets of coils, each with two wire conductors that connect to the ends of coil. For this experiment, choose the orange and orange-white wires that emanate from the 6-wire cable. We will use the other coil wire pairs later on in Experiment 5.

Rectifier Experiment
Figure 5-13: Half Wave Rectifier Wiring Diagram

Since the half wave rectifier circuit is tied directly to one phase of the three-phase AC alternator, its AC input depends directly on the speed at which the rotor magnets spin over the stator coils. The faster they spin, the higher the amplitude and frequency of the sine wave that's produced. The wind captured by the turbine blades power the rotor's spin, however under normal circumstances the wind may not be blowing fast enough or consistently enough to render a valid experimental result. Therefore, we suggest that you find a small electric fan to power the turbine blades for this experiment and the next. The idea is to keep the turbine blades spinning at a reasonably fast and constant rate of speed. That way, the AC sine wave will have a consistent amplitude and frequency, which is what our experiment needs. In doing this, be sure to anchor the stator to the surface it's sitting on so that it does not get blown over by the pressure of the wind from the fan. We've found that a little tape or bracing the bottom stator against a book works fine.

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  • swen
    How does a half wave rectifier on breadboard?
    8 years ago
  • leslie
    How to build a half wave rectifier?
    8 years ago
  • rowan whitfoot
    How to connect a capacitor to a water pump diagram?
    8 years ago
  • lavinia
    How to connect a half wave rectifier circuit on a bread board?
    8 years ago
    How to make half wave rectifier circuit on breadboard?
    8 years ago
    How to construct a halfwave rectifier circuit using breadboard?
    7 years ago
  • monika
    How to build a half wave rectifier on a bread board?
    7 years ago
  • sean hamilton
    How to connecta half wave rectifier in a breadboard?
    4 years ago
  • tom
    Have wave rectifier circut with bread bord experment?
    3 years ago

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