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The working principle and application of linear programmable power supply

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.04.07
Linear programmable power supply is a highly flexible power supply device, whose working principle is based on linear power supply technology and programmable control technology. Below, we will briefly explain its working principle and delve into its advantages in practical applications.



Operational principle

The working principle of linear programmable power supply is mainly to meet the different voltage and current requirements of the device by adjusting the output of the power supply. Compared with traditional switching power supplies, the biggest feature of linear power supplies is to control the output voltage by changing the voltage drop or resistance size of the adjustment transistor. In this process, the adjusting tube is always in a linear working state, so it is named "linear power supply".

Specifically, the core component of a linear programmable power supply is an adjustment transistor, which can be a variable resistor or a transistor with linear adjustment characteristics. When the output voltage needs to be adjusted, the control circuit will adjust the voltage drop or resistance value of the adjustment tube based on the feedback signal, thereby changing the size of the output voltage. This adjustment process is usually continuous and can achieve precise control of the output voltage.

In addition, linear programmable power supplies also have programmable functions, allowing users to set the output voltage, current, and other parameters of the power supply through programming. This is usually achieved through an interface or communication protocol, allowing the output of the power supply to be flexibly adjusted according to actual application needs.

Application advantages

Linear programmable power supplies have wide applications in multiple fields, especially in situations where high-precision and high stability power supplies are required. The following are its main application advantages:

High precision control: Due to the working principle of linear power supply, its output voltage and current can be controlled with high precision. This is very advantageous for application scenarios that require precise voltage and current, such as scientific research, medical equipment, etc.

Low noise and low interference: Due to the adjustment tube always working in a linear state, the noise and interference generated by the linear power supply are relatively small. This is very important for applications that are sensitive to power noise and interference, such as audio devices, communication devices, etc.

Easy to program and control: Linear programmable power supplies typically have programmable interfaces and communication protocols, making it convenient for users to remotely control and monitor. This can greatly improve the flexibility and efficiency of power supply usage.

Suitable for various application scenarios: whether it is laboratory research, industrial production, or medical equipment, linear programmable power supplies can provide stable and reliable power output to meet various application needs.

In summary, linear programmable power supplies provide efficient, stable, and flexible power solutions for various application scenarios through their unique working principles and programmable characteristics. With the continuous development of technology, linear programmable power supplies will play an important role in more fields.
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