Gate Drive Transformer

Gate Drive Transformer is a pulse transformer widely used in IGBT and MOSFET gate drive circuits.

Gate drive transformers for IGBT are the key element in the driver circuit supplying the necessary power for switching and maintaining safe galvanic separation between the intermediate circuit and the low voltage control side.

Gate drive transformers are used to deliver the controlling gate-voltage pulses between the drain and source of a MOSFET, while providing isolation between the MOSFET and the controlling drive circuit.

Shinhom's off-the-shelf gate drive transformers simplify the design of your gate-drive circuit and shorten design cycle time. Our designs typically utilize high-permeability ferrite cores to maximize magnetizing inductance and minimize magnetizing current. The required transformer size is determined by the volt-time product of the application. Therefore the first selection criterion for a gate drive transformer is the volt-time product (V-µsec) rating as shown on the transformer datasheet. This must be greater than or equal to the highest applied voltage-time product expected to avoid core saturation.

1. PCB Family  ✉

These transformers are wound on high quality ferrite core

and are intended for a very wide range of applications:

• firing thyristors and triacs;

• driving bipolar transistor and IGBT;

• driving FET and MOSFET transistors;

• line coupling in high speed data transmission (for the smallest sizes).

Diversified case sizes are presented, with increasing power rating,

so that they can effectively find use as drivers in any low-to-medium

power circuit for control and conversion of electrical energy, where

the following features are requested at the same time:

• high power pulse trasmission capability (high amplitude with proper

duration) and low magnetization current;

• low leakage inductance, wich allows high steepness and short rise time

of the wave form; • low coupling capacitance, so that a good decoupling

and immunity to interferences is reached;

• small size, achivied with the use of toroidal core;

• high primary to secondary withstanding voltage by means of a proper

wires insulation and rosin filling;

• international standards compliance.

Series in this family

2. SMB Family  ✉

FEATURES:

smallest size available on the market

Designed for frequencies from 500KHz to 1MHz

Flat top for pick and place applications

Multiple turns ratios available

APPLICATIONS:

Voltage regulator modules

High frequency AC/DC and DC/DC Converters

Pulse/Signal transformers

Multiple turns ratios available

Series in this family

3. IGBT Family ✉

In modern variable-frequency drives (VFD) IGBT are used in the inverter stage for frequency conversion. The corresponding Gate Driver Circuit needs to supply the necessary power for switching. In medium to high power applications DC/DC converters are usually used for this purpose.

Gate Drive Transformers for IGBT are the key element in these converters maintaining the safe galvanic separation between the intermediate circuit and the low voltage control side.

By using toroidal cores made from nanocrystalline it is possible to transmit the required switching power in extremely compact casings saving valuable PCB space. Advanced insulation and winding concepts ensure highest corona extinction voltages as well as low coupling capacitances.

A large portfolio for typical working voltages between 500 V and 1200 V is available.The transformers feature different transmission ratios and voltage-time areas for demanding applications.

FEATURES:

·Low coupling capacitance

·High insulation strength (reinforced insulation)

·Very high corona extinction voltage

·Compact designs in THT and SMT casings

·Operating temperature range: -40℃ to +105℃

·Storage temperature range: -40℃ to +105℃

Series in this family

Shinhom is dedicated to setting a high bar of excellence for industries that integrate or utilize magnetics technologies in our Gate Drive Transformer products. 

Hot Tags: gate drive transformer, China gate drive transformer manufacturers, suppliers, factory, Balun Transformer, PCB Mount Pulse Transformer, Split Core Current Transformer, PCB Mount Flyback Transformer, LAN Transformers, DC Reactor for Solar Inverters