A Zener Diode is a special purpose diode used for voltage regulation in reverse bias. Zener diode work under breakdown region for typical operation. A minimum current of Zener knee current must be maintained to keep the voltage regulated.
- 4 September
Diode current can be expressed by an equation called diode current equation. The current equation depend on dark saturation current, the charge of an electron, externally applied a voltage and a constant. We also provide a calculator for the diode current equation.
- 15 August
Testing a diode with a digital multimeter in two ways, diode testing portion, and ohmmeter. A diode test is considered passed if it shows low resistance/voltage drop on forward bias and high resistance/voltage drop in reverse bias. A diode curve tracer uses an oscilloscope for VI characteristics graph.
- 9 August
Voltage Multipliers are electric circuits to increase the voltage by a factor of two, three or four in case of Voltage Doubler, Tripler or Quarple respectively. The Voltage multiplier circuit uses capacitors and resistors to enhance the voltage level.
- 3 June
The Bridge type full wave rectifier can convert an AC to DC by the mean of four diodes in such configuration that the output peak voltage remains equal to secondary of transformer peak. In each half cycle, a set of two diodes conduct and block the current alternately.
- 10 March
A center tapped rectifier converts AC voltage to a DC voltage by the means of center tap transformer and two diodes. The output DC voltage of the rectifier is half of the secondary voltage.
- 20 January
Rectifiers are the circuit which converts AC Voltage to DC voltage. The half wave rectifier is the simplest type of rectifier with a single diode. The output of the rectifier is filtered with a capacitor filter to smoothen.
- 25 December
A diode can be connected in forward and reverse bias with a source. In Forward bias connection, a diode conducts current like a closed switch. Where in reverse bias, a diode blocks current like an open switch.
- 9 December
At the time of developing the PN junction diode, the depletion region is formed. Where free electrons and hole cross the conjunction between P- and N-region and recombine.
- 17 November
A semiconductor is a type of electrical material, which is used in electronic devices like PN junction diode, transistor and many more a replacement for a vacuum tube. The semiconductor can be intrinsic or extrinsic, where extrinsic has N-type and P-type.