IGBT Modules - Technologies, Driver and Application (Second Edition) - page 350

Fig. 8.11
Indirect gatedrive inparallel connection
The disadvantage is that the connection between the booster and the actual signal
separation unit and DC/DC converter is five-core. This solution requires more PCB and
interconnection technology than others.
When BJTs are used, it is essential to ensure a supply voltage of 16V for the booster
stages in order toarriveat agate emitter voltage of 15V.
describes the current flow of the charging or discharging of the IGBT input
capacitance. Offset currents, which occur between the auxiliary emitters in parallel
connection, are minimised by upstream series resistors in the voltage supply of the
booster stage.
1...,340,341,342,343,344,345,346,347,348,349 351,352,353,354,355,356,357,358,359,360,...548
Powered by FlippingBook