PIC16F1847_13 Datasheet, PDF (216/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1847
24.4.2 FULL-BRIDGE MODE
In Full-Bridge mode, all four pins are used as outputs.
An example of Full-Bridge application is shown in
Figure 24-10.
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 Figure 24-11.
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 Figure 24-12.
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 24-10:
EXAMPLE OF FULL-BRIDGE APPLICATION
V+
FET
QA
Driver
PxA
QC _FET
Driver
PxB
Load
FET
Driver
FET
Driver
PxC
QB
QD
V-
PxD
DS40001453D-page 216
Preliminary
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