Microchip Technology MA160014 Data Sheet
PIC18(L)F2X/4XK22
DS41412F-page 194
2010-2012 Microchip Technology Inc.
14.4.2
FULL-BRIDGE MODE
In Full-Bridge mode, all four pins are used as outputs.
An example of full-bridge application is shown in
An example of full-bridge application is shown in
In the Forward mode, pin CCPx/PxA is driven to its active
state, pin PxD is modulated, while PxB and PxC will be
driven to their inactive state as shown in
state, pin PxD is modulated, while PxB and PxC will be
driven to their inactive state as shown in
.
In the Reverse mode, PxC is driven to its active state, pin
PxB is modulated, while PxA and PxD will be driven to
their inactive state as shown
PxB is modulated, while PxA and PxD will be driven to
their inactive state as shown
PxA, PxB, PxC and PxD outputs are multiplexed with
the PORT data latches. The associated TRIS bits must
be cleared to configure the PxA, PxB, PxC and PxD
pins as outputs.
the PORT data latches. The associated TRIS bits must
be cleared to configure the PxA, PxB, PxC and PxD
pins as outputs.
FIGURE 14-10:
EXAMPLE OF FULL-BRIDGE APPLICATION
PxA
PxC
FET
Driver
Driver
FET
Driver
Driver
V+
V-
Load
FET
Driver
Driver
FET
Driver
Driver
PxB
PxD
QA
QB
QD
QC