What factors should be considered when programming a DC power supply?
Its control circuit topology is divided into current mode and voltage mode. Current mode control is widely used due to its advantages such as fast dynamic response, simplified compensation circuit, large gain bandwidth, small output inductance, and easy current sharing.
To help everyone better choose programmable DC power supplies;
Below, the editor will introduce the factors to consider when choosing a programmable DC power supply:
Programmable rise time:
This is an aspect that many testing applications need to focus on, such as LED testing, where the current at the moment of startup may be much higher than the operating current of the LED, resulting in stable operation and causing damage to the LED device.
In order to prevent transient voltage overshoot and peak damage during the start-up process, the tested equipment may have a programmable voltage and current conversion rate control function and constant current priority setting to reduce overshoot and supply voltage and current to the LED.
Battery simulation function:
In practical situations, test power circuits or devices using a test source with battery characteristics.
For example, the internal resistance of the power supply is changed, so the voltage applied to the battery powered device will fall within the internal resistance of the battery.
Programmable DC power supply power and 833 meter Ω programmable output resistor, do not underestimate this 833 meter Ω programmable characteristic resistor;
It is crucial that it can simulate battery internal resistance and power battery performance.
As an energy conversion device, programmable DC power supplies have been widely used in the fields of electronics, electrical equipment, and home appliances due to their advantages of small size, light weight, high efficiency, and stable performance, and have entered a period of rapid development.
Do you know what cables are commonly used for programmable DC power supplies?
Full name: Copper core PVC insulated PVC sheathed flexible cable.
RVV wire, with a circular appearance, has a relatively large number of cores, and both cores are twisted together. R represents flexible wire, and the letter V represents insulation polyvinyl chloride (PVC).
Main uses of RVV cable:
Programmable DC power lines, control lines, and signal transmission lines that do not require shielding, applied to electrical appliances, instruments, electronic equipment, and automation devices.
2. RVVP
Full name: Copper core PVC insulated PVC shielded flexible cable.
Suitable for communication, audio, broadcasting, audio systems, anti-theft alarm systems, intelligent automation systems, automatic meter reading systems, fire protection systems, and other communication systems that require anti-interference line connections and secure transmission data cables.
The letter R represents flexible wire, the letter V represents insulation polyvinyl chloride (PVC), and the letter P represents shielding.
RVVP can be specifically used for control lines in monitoring systems, access control systems, building visual intercom systems, and building control systems.
