LM358 uses a voltage divider circuit to sample 3 strings of lithium batteries. How to improve sampli

Increase the resistance of the voltage divider resistor: Increasing the resistance of the voltage divider resistor can make the voltage drop across the resistor more obvious, thereby improving the resolution. However, it should be noted that too high a resistance value can affect the stability and response speed of the circuit.

Use a differential amplifier: Using a differential amplifier instead of LM358 can better suppress common mode interference, improve the signal-to-noise ratio of the signal, and thus improve the resolution.

Software filtering algorithm: After obtaining the voltage signal, software filtering algorithms, such as moving average filtering, median filtering, etc., can be used to further eliminate noise and improve the resolution.

Adjust the ADC resolution: if an ADC (analog-to-digital converter) is usedin the circuit, the sampling resolution can be improved by selecting a higher resolution ADC.

Optimize circuit layout and wiring: Reasonable circuit layout and wiring can reduce interference and noise between lines and help improve resolution.

Consider using higher precision components: for example, using high precision resistors and capacitors, which may increase cost but improve resolution.

The most critical thing for new energy vehicles is the battery. The safety and endurance of lithium batteries greatly affect the continued use of new energy vehicles.

At present, the production technology of domestic battery manufacturers is at the confidential stage. Generally, customers judge the quality of new energy vehicle batteries by theirsubsequent use.

The filtration of lithium batteries of new energy vehicles requires the use of professional electrolyte filtration equipment. Common electrolyte filters are divided into the following types:

Summary of specifications of electrolyte filter elements

1. 5 inch single-core filter element Material: 316 stainless steel, flow rate: 0.5-1T/hour, filtration precision: 0.1-600um, maximum operating pressure: 1MPa, pressure difference operating temperature: 0.01-0.0.6MPa, operating temperature: 0-150 ℃

2. 10 inch single-core filter element Material: 316 stainless steel, flow rate: 1-1.5T/hour, filtration precision: 0.1-600um, maximum operating pressure: 1MPa, difference operating pressure: 0.01-0.0.6MPa, operating temperature: 0-150℃

3. 20 inch core filter element