## Basic logic operation and its circuit implementation

Experimental principle In logical algebra, there are three basic logical operations: and, or and not. As shown in Figure 1, the control circuit of three indicator lights is given. In the circuit of Fig. 1 (a), the indicator light will be on only when two switches are closed at the same time. This causal relationship […]

## Difference between DC power supply and AC power supply

Difference between DC power supply and AC power supply Today’s power generation equipment uses AC, and our household power supply also uses this type of power supply system on weekdays. However, some electrical appliances we usually use, such as computers, can only be supplied to us by turning into DC. DC and AC are the […]

## DC power symbol_ Brand ranking of DC power supply

DC power symbol The symbol of alternating current is represented by “~”, which is referred to as AC for short; The symbol of direct current is represented by “-“, which is referred to as DC for short. For example, the AC voltage is AC220V and the DC voltage is DC24V. The current whose magnitude and […]

## New products online | source! My test plan is only a little short of high current!

New model release In order to meet the market demand for low-voltage and high current linear power supply, RIGOL DP800 series linear DC power supply has carefully launched new high-performance models: dp813a and dp822a. Dp813a is a single channel dual range power supply: 8V * 20A or 20V * 10a, and dp822a is a dual […]

## Only a few hundred millivolts of micro DC power supply voltage power supply solution

Q: What good solution can produce a micro DC power supply voltage of only a few hundred millivolts? A: Simply connect a clean applied positive voltage to the feedback resistor of the DC-DC converter. In the past few years, the power supply voltage of electronic components has been declining due to the continuous reduction of […]

## The brightness index characteristics and identification of LED electronic display screen are discussed in detail

As a media of publicity, LED display screen appears frequently in our life, and the demand for maintenance identification materials relative to LED electronic display screen is also increasing. Let’s discuss how to identify the brightness of LED electronic display screen. First, let’s understand what is the brightness of LED electronic display: The brightness of […]

## Functional characteristics and application of it6000 series high power DC power supply

It6000 series is a CNC DC power supply designed with the latest technology, with high power density and maximum output power of 15kw in 3U volume. It is suitable for workbench and automatic test system, making it easier and more effective to use. The voltage and current output of the power supply is limited by […]

## new products come online! My test plan is only a little short of high current!

New model release In order to meet the market demand for low-voltage and high current linear power supply, RIGOL DP800 series linear DC power supply has carefully launched new high-performance models: dp813a and dp822a. Dp813a is a single channel dual range power supply: 8V * 20A or 20V * 10a, and dp822a is a dual […]