Voltage regulator application and precautions
Speaking of integrated regulated power supply:
1. There are many types of integrated voltage regulator circuits. There are linear and switch-type adjustment methods, and there are fixed and adjustable output modes. Each type of regulator has positive, negative and tracking types. Each type of product is divided into three ends and multiple ends according to its shape. It is also classified according to the current. Each type of product has its own characteristics and scope of application. Therefore, when selecting an integrated voltage regulator circuit, considering the design needs and possible performance and price ratio, the best use and best performance can be achieved.
2. Because the advantages of the three-terminal regulator are obvious, the operation is more convenient, and the selection should be given priority.
3. Before plugging in the circuit, be sure to understand the role of each terminal to avoid misconnection.
4. When using, the heat sink that meets the required size must be installed for the required heat sink.
5. It is strictly forbidden to use it.
6. To ensure the stability of the output voltage, the minimum input/output voltage difference should be ensured; to ensure safety, it should be noted that the maximum input/output voltage difference does not exceed the specified range.
7. Mounting and soldering should be firm and reliable, avoiding large contact resistance and voltage drop and overheating.
8. Some integrated regulator outputs can work without capacitors. When the output load is some value of capacitance, the regulator may be self-excited. In order to avoid this phenomenon, a 1μF tantalum capacitor or a 25μF aluminum electrolytic capacitor can be connected between the output and the ground.
9. In order to increase the output current, the three-terminal integrated regulator allows parallel use.
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Label: Regulator application and precautions
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