User manual

PSMC Designer User’s Guide
DS40001671B-page 4  2012-2013 Microchip Technology Inc.
2.17 Falling Event ............................................................................................... 20
2.17.1 Synchronous Selection ............................................................................20
2.17.2 Asynchronous Selection ..........................................................................21
2.17.3 Asynchronous Polarity (not available on PIC16(L)F1782/3) ....................21
2.17.4 Interrupt ....................................................................................................21
2.18 Modulation .................................................................................................. 21
2.18.1 Modulation Source Selection ...................................................................22
2.18.2 Modulation Enable ...................................................................................22
2.19 PSMC Modes ............................................................................................. 22
2.19.1 Dead-Band Control ..................................................................................23
2.19.2 SPWM: Single PWM Mode ......................................................................23
2.19.3 SPWMC: Single PWM Mode with Complementary Outputs ....................24
2.19.4 PP: Push-Pull Mode .................................................................................25
2.19.5 PPC: Push-Pull with Complementary Output ...........................................25
2.19.6 FBPP: Full-Bridge Push-Pull ....................................................................26
2.19.7 FBPPC: Full-Bridge Push-Pull with Complementary Mode Outputs ........27
2.19.8 PS: Pulse-Skipping Mode ........................................................................27
2.19.9 PSC: Pulse-Skipping with Complementary Output ..................................28
2.19.10 ECCPR: ECC PWM Full-Bridge Mode, Reverse Direction ....................29
2.19.11 ECCPF: ECC PWM Full-Bridge Mode, Forward Direction .....................30
2.19.12 FDC: Fixed Duty Cycle Mode ................................................................30
2.19.13 Fine Frequency Adjust ...........................................................................31
2.19.14 FDCC: Fixed Duty Cycle with Complementary Output ..........................31
2.19.15 3PH: 3-Phase PWM ...............................................................................32
2.20 Output Control ............................................................................................ 33
2.20.1 Output Enable ..........................................................................................34
2.20.2 Output Steering ........................................................................................34
2.20.3 Output Steering Synchronization .............................................................34
2.20.4 Output Polarity .........................................................................................35
2.20.5 Shutdown Level .......................................................................................35
2.21 Auto-Shutdown ........................................................................................... 35
2.21.1 Shutdown Enable .....................................................................................35
2.21.2 Shutdown Sources ...................................................................................35
2.21.3 Shutdown Override ..................................................................................35
2.21.4 Auto/Manual Restart ................................................................................35
2.22 Sync Control (not available on the PIC16(L)F1782/3) ................................ 36
Chapter 3. PSMC Tips
3.1 Variable Period with Fixed Off-time .............................................................. 37
3.2 3-Phase Variable Duty Cycle ....................................................................... 38
3.3 Center Weighted Variable PWM .................................................................. 39