003 Diodes-Zener voltage regulator-full wave bridge rectifier-polarity indicator

Zener diode voltage regulators, full wave bridge rectifier, and polarity indicator circuit fragments were just going to be covered under the broad category of diodes in the second video. But, the video was already long enough, so I split up the topics.

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Basic properties

  • Full wave bridge rectifier – Redirects a voltage that changes direction, so that a load receives the voltage, minus 2 diode drops, in a single direction.
  • Zener regulator – Uses a zener diode that is conducting while reversed biased to set a voltage at it’s cathode. However, it is a weak voltage. So, future videos will show how to use the zener to set the voltage for a current (power) amplifier. Zener diode component – voltage reference – regulator
  • Polarity indicator circuit fragment uses a couple of LEDs that are wired parallel to each other, but in the opposite direction of each other. One will conduct and keep a low voltage at the other one. Which one that conducts (and thus light up), depends on which direction the voltage is applied.

Diagram explained in video below

Basic electronics circuit fragments and simple circuits 2 diagram covering rectifier zener and light emitting diodes LEDs by electronzap electronzapdotcom
Basic electronics circuit fragments and simple circuits 2 diagram covering rectifier zener and light emitting diodes LEDs by electronzap electronzapdotcom

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Electronics course 3 Diodes in full wave bridge rectifier zener and polarity indicator circuits

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