11 basic working principles of linear power supply
1. Power transformer and rectifier: convert 380V AC power into the required DC power.
2. Pre voltage stabilization circuit: using relay components or thyristor components to pre adjust and preliminarily stabilize the input AC or DC voltage, thereby reducing the power consumption of linear adjustment components and improving work efficiency And ensure high precision and stability of the output voltage source.
3. Linear adjustment component: Fine tune the filtered DC voltage to achieve the required value and accuracy of the input voltage.
4. Filter circuit: It maximizes the prevention and absorption of pulsating waves, interference, and noise from DC power supply, thereby ensuring low ripple, low noise, and low interference output voltage of DC power supply.
5. Single chip microcontroller control system: The single-chip microprocessor controller compares, judges, calculates, analyzes and processes various signals detected, and then issues corresponding control instructions to ensure the normal, reliable and coordinated operation of the overall DC stabilized power supply system.
6. Auxiliary power supply and reference voltage source: Provide high-precision reference voltage source and power supply required for electronic circuit operation for DC voltage regulation system.
7. Voltage sampling and voltage regulation: detect the output voltage value of the DC stabilized power supply and set the output voltage value for regulating the DC stabilized power supply.
8. Comparative amplification circuit: compares the output voltage value of the DC stabilized power supply with the voltage of the reference source to obtain an error voltage signal, amplifies feedback and controls linear adjustment components to ensure stable output voltage.
9. Current detection circuit: obtains the output current value of the DC stabilized power supply for current limiting or protection control information.
10. Drive circuit: a power amplification circuit designed to drive executable components.
11. Display: Display the output voltage and current values of the DC stabilized power supply.
