What is the basic principle of programmable DC power supply?
There are many types of programmable DC power supplies, and among different types of programmable DC power supplies, the properties of non electrostatic forces are different, and the process of energy conversion is also different. In chemical batteries (such as dry batteries, rechargeable batteries, etc.), non electrostatic forces are chemical reactions related to the dissolution and deposition of ions. When a chemical battery discharges, chemical energy is converted into electrical energy and Joule heat in thermoelectric power sources (such as metal thermocouples, semiconductor thermocouples). Non electrostatic forces are diffusion effects related to temperature differences and electron concentration differences. When thermoelectric power sources provide power to external circuits, thermal energy is partially converted into electrical energy. In a DC generator, non electrostatic force is caused by electromagnetic induction. When the DC generator is powered, mechanical energy is converted into electrical energy and Joule heat. In photovoltaic cells, non electrostatic forces are the result of the photovoltaic effect. When the photovoltaic cell is powered, light energy is converted into electrical energy and Joule heat.
In production testing, the wide range voltage output of programmable DC power supplies is suitable for testing and analyzing the characteristics of components, circuits, modules, and complete devices. So what is the basic principle of programmable DC power supply?
The non electrostatic force in a programmable DC power supply is directed from the negative pole to the positive pole. After the programmable DC power supply is connected to the external circuit, a current is formed from the positive pole to the negative pole outside the power supply (external circuit) due to the pushing force of the electric field. Inside the power supply (internal circuit), the effect of non electrostatic forces causes current to flow from the negative pole to the positive pole, thereby forming a closed cycle of charge flow.
Programmable DC power supply with built-in automotive electronic engine start test waveform that complies with German DIN40839 standard and voltage interruption test waveform that complies with international ISO16750-2 standard, providing solutions for the automotive electronics industry. Save the tedious editing process before testing, and at the same time, testing engineers can adjust the waveform settings parameters themselves to output waveforms at different testing levels.
