The one I've shown is an industry standard known as a 1N4004. You use four of these to make your full wave rectifier, or you can purchase four of them packaged in a single container known simply as a 'diode bridge'. Every time the AC passes through this one-way gate it sends out a small burst of noise. The intensity of that noise is dependent on the amount of power we're asking of the power supply: more power, more noise.
This noise can be dealt with but many designers pay little attention to it. In our equipment, for example, we take the time to place small 'snubbers' near these devices to squash the noise. Why would we do that? Because adding noise that gets into your amplification circuitry is audible. It makes for a grunge to the music that's not pretty.
Tomorrow let's move forward to answer a number of questions about turning our rippled example of yesterday into a straight line.
Noise
The one I've shown is an industry standard known as a 1N4004. You use four of these to make your full wave rectifier, or you can purchase four of them packaged in a single container known simply as a 'diode bridge'. Every time the AC passes through this one-way gate it sends out a small burst of noise. The intensity of that noise is dependent on the amount of power we're asking of the power supply: more power, more noise.
This noise can be dealt with but many designers pay little attention to it. In our equipment, for example, we take the time to place small 'snubbers' near these devices to squash the noise. Why would we do that? Because adding noise that gets into your amplification circuitry is audible. It makes for a grunge to the music that's not pretty.
Tomorrow let's move forward to answer a number of questions about turning our rippled example of yesterday into a straight line.
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