When to use a differential probe

The high-voltage probe is the 1 probe specially designed for measuring high-voltage circuits or equipment. Its function is to provide safe and accurate signal capture during circuit testing and measurement, and to ensure the safety of operators. These probes are commonly used to measure high-voltage power supplies, transformers, power systems, medical equipment, and other equipment or systems that need to handle high voltages.

The principle of differential amplification of high-voltage differential probe refers to the simultaneous input of a pair of signals into the amplification circuit, and then subtract the original signal. A differential amplifier is an amplifier composed of two product tubes with the same parameter resistance by direct coupling. If signals of the same size and phase are input at the two input terminals, the output will be zero, thus overcoming the zero drift. You can convert any two floating-point signals into one signal to the ground. In order to provide oscilloscopes, meters or computers, many circuits, especially motor circuits, including DC compensation or AC compensation, and even no grounding circuit at all, will cause electric shock or damage the oscilloscope, or cause a wire fire, at this time the use of differential probe is a better choice. The high-voltage differential probe has good common-mode noise suppression ability, high input impedance at the input end, low capacitance, and can accurately measure differential voltage signals at high speed.