Datasheet

 2011 Microchip Technology Inc. DS39932D-page 259
PIC18F46J11 FAMILY
18.5.2 FULL-BRIDGE MODE
In Full-Bridge mode, all four pins are used as outputs.
An example of a full-bridge application is provided in
Figure 18-10.
In the Forward mode, the PxA pin is driven to its active
state, the PxD pin is modulated, while the PxB and PxC
pins will be driven to their inactive state as provided in
Figure 18-11.
In the Reverse mode, the PxC pin is driven to its active
state, the PxB pin is modulated, while the PxA and PxD
pins will be driven to their inactive state as provided
Figure 18-11.
The 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.
FIGURE 18-10: EXAMPLE OF FULL-BRIDGE APPLICATION
PxA
PxC
FET
Driver
FET
Driver
V+
V-
Load
FET
Driver
FET
Driver
PxB
PxD
QA
QB
QD
QC