January 09, 2025

DC electronic load design basis

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin
GW MB10F 0.8A 1000V rectifier bridge

description:

The principle of the electronic load is to control the conduction of the internal power MOSFET or transistor (the amount of duty cycle). The device that consumes power by the power dissipation of the power tube can accurately detect the load voltage and accurately adjust the load current. Achieve analog load short circuit, analog load is inductive resistive and capacitive, capacitive load current rise time. General debugging of the switching power supply is indispensable.

Attached are several circuit examples, see the PDF document for details!

SCHOTTKY

The Schottky Diode is another type of semiconductor diode which can be used in a variety of wave shaping, switching and rectification applications the same as any other junction diode. The main adavantage is that the forward voltage drop of a Schottky Diode is substantially less than the 0.7 volts of the conventional silicon pn-junction diode.

Schottky diodes have many useful applications from rectification, signal conditioning and switching, through to TTL and CMOS logic gates due mainly to their low power and fast switching speeds.


the Schottky Diode also known as a Schottky Barrier Diode is a solid-state semiconductor diode in which a metal electrode and an n-type semiconductor form the diodes ms-junction giving it two major advantages over traditional pn-junction diodes, a faster switching speed, and a low forward bias voltage.

The metal–to-semiconductor or ms-junction provides a much lower knee voltage of typically 0.3 to 0.4 volts compared against a value of 0.6 to 0.9 volts seen in a standard silicon base pn-junction diode for the same value of forward current.

Variations in the metal and semiconductor materials used for their construction means that silicon carbide (SiC) Schottky diodes are able to turn [ON" with with a forward voltage drop as little as 0.2 volts with the Schottky diode replacing the less used germanium diode in many applications requiring a low knee voltage.

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Changzhou Changyuan Electronic Co., Ltd. , https://www.cydiode.com