点烟器电压是多少伏正常?

What is the normal voltage of a car lighter?

The normal voltage of a car lighter is 12V:

1. A car charger is a device that provides power to portable and handheld devices such as mobile phones, PDAs, and GPS units using the 12V or 24V from a car battery.

2. It is important to consider the actual needs of lithium-ion battery charging (constant voltage, constant current, and over-voltage protection) while taking into account the harsh conditions of the vehicle battery (瞬态尖峰电压, system switching noise interference, EMI, etc.);

3. Therefore, the power management IC used in car chargers must meet the following requirements: high voltage resistance, high efficiency, high reliability, and low frequency (which is beneficial to EMI design).