The LM317 is a widely used adjustable voltage regulator that can deliver up to 2.2A of output current with a voltage range from 1.25V to 37V. Here's how it connects:
A 1.25V reference voltage exists between pins 1 and 2. To maintain optimal performance, resistor R1 should not exceed 240 ohms. Adjusting the value of R2 allows you to fine-tune the output voltage. Diodes D1 and D2 provide protection against reverse current flow.
Uo = (1 + R2/R1) × 1.25
For example, if R1 is set to 240 ohms and R2 to 1k ohms, the output voltage would be calculated as follows:
Uo = (1 + 1000/240) × 1.25 ≈ 6.5V
This means that by tweaking the resistors, you can achieve a wide range of voltages suitable for various electronic projects. Always remember to select appropriate components to ensure safety and reliability in your circuits.
The 48V Lifepo4 Battery, or 48V lithium iron phosphate battery, is a type of lithium-ion battery that uses lithium iron phosphate (LiFePO4) as a positive electrode material and has a nominal voltage of 48V. This kind of battery has a wide range of applications in many fields because of its unique performance and advantages. The following is a detailed description of its class purpose:
First, basic attributes
Voltage: 48V, suitable for applications that require a high voltage source.
Technology type: Lithium iron phosphate battery, with high safety, long life, high energy density and good environmental adaptability.
Second, application scenarios
Electric vehicles: 48V lithium iron phosphate batteries are widely used in electric bicycles, electric motorcycles, electric tricycles and some electric vehicles to provide lasting power support for them.
Energy storage system: In renewable energy systems such as solar energy storage and wind energy storage, 48V lithium iron phosphate batteries are used as important energy storage components to convert renewable energy into electricity and store it for subsequent use.
Industrial equipment: In industrial automation, robots, power tools and other fields, 48V lithium iron phosphate batteries also play an important role, providing stable and reliable power support for various industrial equipment.
UPS power supply: For data centers, communication base stations and other places that require high-reliability power supply, 48V lithium iron phosphate batteries are used as backup power supplies for the UPS system to ensure that the power supply can continue when the mains power is lost.
Third, performance characteristics
High safety: Lithium iron phosphate material has good thermal stability and chemical stability, so that lithium iron phosphate battery in overcharge, overdischarge, short circuit and other extreme conditions can still maintain a high safety.
Long life: The cycle life of lithium iron phosphate batteries is long, which can meet the needs of long-term use, and reduce the frequency and cost of replacing batteries.
High energy density: Compared to other types of batteries, lithium iron phosphate batteries have a high energy density and are able to store more electrical energy in the same volume or weight.
Good environmental adaptability: lithium iron phosphate batteries can work in a wide temperature range, and no pollution to the environment, in line with environmental protection requirements.
4. Technical parameters (Take a specific product as an example)
Please note that the following technical parameters may vary from product to product:
Nominal voltage: 48V (the actual voltage may vary depending on the charging and discharging state)
Nominal capacity: According to the specific product, such as 10Ah, 50Ah, 100Ah, etc
Charging voltage: Generally around 54.6V (specific value may vary by product)
Discharge cut-off voltage: Generally about 42V (the specific value may vary by product)
Charge current: Different sizes of charge current are supported, depending on the design of the charger and the state of the battery
Discharge current: Also supports different sizes of discharge current to meet the needs of different application scenarios
Operating temperature range: a wide operating temperature range, usually including charging temperature, discharge temperature and storage temperature three intervals
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