The LM317 is a widely-used adjustable integrated voltage regulator with a maximum output current of 2.2A and an output voltage range from 1.25V to 37V. Its wiring configuration is straightforward:
There is a 1.25V voltage reference between pins 1 and 2. To ensure optimal performance of the regulator, the resistance of R1 should not exceed 240 ohms. The output voltage can be adjusted by varying the value of R2. Diodes D1 and D2 provide protection for the LM317 against reverse current flow.
Uo = (1 + R2/R1) × 1.25
This circuit is commonly used in various power supply designs due to its adjustability and reliability. Engineers often tweak the values of R1 and R2 to achieve precise voltage outputs tailored to their specific needs. For instance, if you need a stable 5V output, you would calculate the appropriate resistor values based on the formula provided above.
In addition to the LM317, there are several other critical components mentioned in this document. The probe described earlier is ideal for testing high-current circuits, ensuring that engineers can safely measure voltage without risking damage to their equipment. Meanwhile, the industrial router crystal ensures precise timing in telecommunications devices, which is crucial for maintaining data integrity and communication speed.
The MOS power IC mentioned covers a broad spectrum of power applications, making it suitable for both consumer electronics and industrial machinery. Its ability to handle large currents efficiently makes it indispensable in modern power management systems.
Lastly, the one-piece inductor provides excellent filtering capabilities, helping reduce electromagnetic interference (EMI) in sensitive electronic circuits. This component is particularly important in environments where signal quality is paramount, such as audio equipment or medical devices.
Portable Power Station (portable power station), also commonly known as outdoor power supply, is a multi-functional portable energy storage power with built-in lithium-ion batteries, which can store electrical energy and have AC output. The following is the category introduction of Portable Power Station:
First, basic characteristics
Built-in lithium-ion battery: as an energy storage core to provide electrical energy reserve.
AC output: can output 100-240V AC, suitable for a variety of electrical equipment.
Dc output: Various DC output modules such as 5V/9V/12V are configured to meet the charging requirements of different types of devices.
Portability: Light weight, high capacity, high power, easy to carry, can be used indoors or outdoors.
2. Application field
Portable Power stations have a wide range of applications, including but not limited to:
Home emergency: As a home backup power supply, to provide power support in the event of a power failure.
Outdoor activities: such as camping, mountaineering, self-driving Tours, etc., to provide electricity for various electronic devices.
Photography: Provide power support for cameras, camcorders, lighting equipment, etc.
Workplace: Power portable computers, printers, projectors and more.
Professional fields: such as medical, rescue, communication, exploration, construction, etc., to provide reliable power guarantee.
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