Charge control chip charging current Settings Main component TP4056 Charge Management chip TP4056 is a commonly used single lithium battery constant current/constant voltage linear charge management chip. The charging current can be set via an external resistor. The specific formula is: Charging current (mA) = 1000 / Rprog (kΩ). For example, if a 1.2kω resistor is used, the charging current…
Dc charging pile power switch chip overvoltage protection module OVP Main component Concept: OVP (Over Voltage Protection) is an important part of the DC charging pile power switch chip, its main function is to quickly cut off the power or suspend the output when the input voltage exceeds the preset safety threshold, in order to protect the back-end circuit from…
Dc charging pile power switch chip start module Main component Concept: The starting module of the DC charging pile power switch chip is an important part of the charging pile, which is specially responsible for activating and initializing the power switch chip at the beginning of the charging process to ensure the smooth and safe start of the power conversion…
Dc charging pile power switch chip drive circuit Main component Concept: The drive circuit of the DC charging pile power switch chip refers to the circuit used to control and drive the power switch device (such as MOSFET, IGBT, etc.), which ensures that the power switch device can act accurately in accordance with the predetermined logic and timing to achieve…
The introduction of OSC and PWM oscillator of DC charging pile power switch chip Main component Concept: Oscillator OSC: In the DC charging pile power switch chip, the oscillator (OSC) is the basis for generating PWM (pulse width modulation) signals. It forms sawtooth wave through charge and discharge of capacitor, and generates square wave with adjustable duty cycle together with…
The soft start circuit of DC charging pile power switch chip is introduced Main component Concept: The soft start circuit is an important part of the DC charging pile power switch chip, its main function is to gradually increase the output voltage when the power supply starts, in order to avoid the damage to the power module or the load…
The current limiting protection of DC charging pile power switch chip is introduced Main component Concept: Current limiting protection is an electrical safety technology used to limit the amount of current in a circuit to prevent equipment damage or safety accidents caused by abnormal current (such as short circuit, overload). In DC charging pile power switch chip, current limiting protection…
The paper introduces the temperature protection of DC charging pile power switch chip Main component Concept: Temperature protection refers to a safety mechanism integrated in the DC charging pile power switch chip to monitor and control the working temperature of the charging pile to prevent equipment damage or safety accidents caused by overheating. This technology typically involves temperature sensors and…
Introduction to error amplifier of DC charging pile power switch chip Main component Concept: The error amplifier is a key component in the DC charging pile power switch chip, which belongs to a kind of operational amplifier, used to compare the error value between the sampling voltage (UQ, also known as feedback voltage) and the reference voltage (UREF), so as…
Power management of communication interface chip of DC charging pile The power management of communication interface chip of DC charging pile is the key technology to ensure the stable operation and communication reliability of charging pile. The following is a description of the concept, role and working principle of power management: Main component Concept: Power management in DC charging piles…