LD2982BM18R

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LD2982BM18R application field and working principle

The Linear Voltage Regulator is a key component within the power management system to distribute and stabilize the incoming voltage to reactive components. The LD2982BM18R is an adjustable voltage regulator designed by HMW Ltd specifically for mobile application and other automotive applications. It is designed to deliver maximum efficiency, safety and dependability.

LD2982BM18R is a voltage regulator featuring low input voltage, adjustable output voltage, and reverse polarity protection. It provides stable voltage and current, enabling the system to function without power fluctuations. It also protects the circuit from electrical noise and spikes, ensuring that the desired voltage is delivered to the application or device.

The main application areas of the LD2982BM18R include automotive charging systems, controllers, alarms, LED lighting systems, mobile phones, RFID, automotive electronics and other low- to medium-power systems.

Working principle

The LD2982BM18R works by regulating a voltage source from too low or too high toward a stable predetermined voltage level. It is composed of an input, a voltage regulating section and an output stage. The input stage is connected to the output stage and it reads the value of the input voltage. If the input voltage is too low, the circuit increases it to the desired rate and if it is too high, the circuit adjusts it downwards.

The regulating section of the circuit contains a voltage divider, a voltage regulating element and an output drive transistor. The voltage divider filters the input voltage and divides the voltage value with its output connected to the non-inverting pin of the voltage regulating element. Based on the input signal, the voltage regulating element produces an output voltage that is proportional to the input signal, which is connected to the gate of the output drive transistor.

Finally, the output stage consists of the output drive transistor and the output impedance. The output drive transistor amplifies the signal from the regulating section and passes it to the output impedance. The output impedance provides a connection to the load, enabling the load to receive a stable and consistent voltage. This process continues until the output voltage reaches a desired level.

Conclusion

By combining low input voltage, adjustable output voltage, and reverse polarity protection, the LD2982BM18R Linear Voltage Regulator provides extremely stable voltage and current to the connected system or application, and is ideal for mobile applications as well as low- to medium-power systems.

The specific data is subject to PDF, and the above content is for reference