What is a single resonant converter based equalization circuit?

Yu et al. proposed single resonant converter based equalization circuit. They used 300F SC. The initial voltage of these SC are 2.5 V, 2.3 V and 2.0 V. After 15 min this equalization does not equalize the SC voltage. Theoretically, this circuit equalizes the cell voltage in 2.267 V but it has 10 mV gaps.

What are active equalization circuits?

There active equalization circuits make use of the switches, capacitors, inductors, and transformer. This equalization system required smart voltage or charge sensing, many switches, a complex control system, good efficiency and suitable for low voltage application.

How to balance voltage across a supercapacitor?

Voltage balancing with balance resistors/passive method The simple and most cost-effective way to balance the voltages across the supercapacitors is to connect resistors of equal value across each supercapacitor. As the resistor is connected permanently across supercapacitors, the power dissipation in the resistors will be continuous.

Does a single resonant converter equalize a cell voltage?

Theoretically, our circuit equalizes the cell voltage in 11.357 V but it was equalizing in 11.35 V. Yu et al. proposed single resonant converter based equalization circuit. They used 300F SC. The initial voltage of these SC are 2.5 V, 2.3 V and 2.0 V. After 15 min this equalization does not equalize the SC voltage.

How to reduce power dissipation and maintain voltage balance?

To reduce power dissipation and to maintain balance in the voltages, the balance circuit can be implemented using an operational amplifier. This solution can contribute faster voltage balance even if high resistance values are used as the ladder network.

What are the two types of Equalization circuits?

There are two groups of equalization circuits, namely: energy-consuming called passive equalization and energy recovery referred to as active equalization. In passive equalization, using the resistor for consuming the excess energy from the higher cell in the string to balance the lower cell.