Can LLC converter be a start-up power supply for automotive applications?

This article deals with the design, simulation and practical realization of LLC converter as start-up power supply for automotive applications with using of new switching semiconductors and supercapacitor. The main topology of the power supply is realized as full-bridge resonant LLC converter in connection with two-phase interleaved PFC converter.

What is emergency start power supply?

Emergency starting power supplies have begun to import kamcap super capacitors in large quantities, which has become a mature application field for kamcap super capacitors. When the car battery fails to start, the emergency start power supply can quickly start the car in a short time, which is a must-have for car outings in the field.

What is a start-up power supply?

Introduction Nowadays the mostly used start-up power supplies are realized with an integrated accumulator or with the use of line transformer (50 Hz). The first type of start-up power supply uses rechargeable accumulator as a source of energy. The construction of such supplies is very simple.

Why are start-up power supplies so heavy?

These types of start-up power supplies are heavy because it contains huge line transformer and has to be mounted on chassis with wheels for easy movement. 12/24 V switch can be included if the power supply is constructed for starting cars with 12V installation or trucks with 24 V installation.

Can supercapacitors be used in vehicle emergency start?

The energy storage characteristics of supercapacitors, such as high power density and fast charging and discharging, fully meet the rapid response requirements of vehicle field rescue, so it can play a huge role in the field of automobile emergency start.

How long does it take a power supply to deliver peak power?

Start-up power supply has delivered peak power within several seconds, while the stability of output variables is the most important ability. For magnetic component, i.e. for the transformer is very important to hold the value of magnetic flux B within the ferrite core under maximal allowed value (Bmax) of the specific core material.