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Full Bridge IR 2153 Configuration



Original poster: "David Sharpe by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>

IR supplied info today for full bridge driver using two (2) IR2153's
A series resistor is wired from Rt terminal of first (master) chip and

wired to Ct of second (slave) chip.  A pull up resistor is installed
between Ct of Vcc of second chip to allow minimum voltage
on Ct to agree with following relationship:

1/6Vcc (shutdown) < Ct <= 1/3Vcc

According to Applications Engineering, both chips will now be running
in anti-phase relationship to one another (i.e. a full bridge driver).

When I build PCB will design board to support master or slave
configuration (maybe setup via a dip switch or optocoupled
[isolated] mode).

To support a same phase configuration (as self balancing multilevel
converter), an inverter must be used between Rt of master and Ct
of slave chip; a high speed optocoupler will nicely perform this
isolated
signal inversion function, and allow galvanic isolation between
stages.

Now its time to start laying out and assembling some PCB's...
Still consider a full bridge converter capable of ~2kW for silicon
cost of < $20.  Incredible...   :^D

Regards
Dave Sharpe, TCBOR
Chesterfield, VA. USA