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© 2010-2011 Microchip Technology Inc. DS70645C-page 14-1
High-Speed PWM
14
Section 14. High-Speed PWM
HIGHLIGHTS
This section of the manual contains the following major topics:
14.1 Introduction .................................................................................................................. 14-2
14.2 Features....................................................................................................................... 14-2
14.3 Control Registers ......................................................................................................... 14-3
14.4 Architecture Overview................................................................................................ 14-24
14.5 Module Description .................................................................................................... 14-27
14.6 PWM Operating Modes.............................................................................................. 14-33
14.7 PWM Generator......................................................................................................... 14-71
14.8 PWM Trigger.............................................................................................................. 14-87
14.9 PWM Interrupts.......................................................................................................... 14-98
14.10 PWM Fault Pins ......................................................................................................... 14-99
14.11 Special Features ...................................................................................................... 14-105
14.12 PWM Output Pin Control...........................................................................................14-111
14.13 Immediate Update of PWM Duty Cycle ................................................................... 14-113
14.14 Power-Saving Modes............................................................................................... 14-114
14.15 External Control of Individual Time Base(s)............................................................. 14-114
14.16 Application Information ............................................................................................ 14-115
14.17 Register Map............................................................................................................ 14-126
14.18 Related Application Notes........................................................................................ 14-127
14.19 Revision History ....................................................................................................... 14-128
dsPIC33E/PIC24E Family Reference Manual
DS70645C-page 14-2 © 2010-2011 Microchip Technology Inc.
14.1 INTRODUCTION
This section describes the High-Speed Pulse-Width Modulator (PWM) module and its
associated operational modes. The High-Speed PWM module in the dsPIC33E/PIC24E
device family supports a wide variety of PWM modes and is ideal for power
conversion/motor control applications. Some of the common applications include:
AC-to-DC converters
DC-to-DC converters
AC and DC motors: BLDC, PMSM, ACIM, SRM, etc.
• Inverters
Battery chargers
Digital lighting
Uninterrupted Power Supply (UPS)
Power Factor Correction (PFC) (e.g., Interleaved PFC and Bridgeless PFC)
14.2 FEATURES
The High-Speed PWM module consists of the following major features:
Up to seven PWM generators, each with an individual time base
Two PWM outputs per PWM generator
Individual period and duty cycle for each PWM output
Duty cycle, dead time, phase shift and frequency resolution equal to the system clock
source (TOSC)
Independent fault and current-limit inputs for up to 14 PWM outputs
Redundant Output mode
Independent Output mode (this feature is not available on all devices)
Push-Pull Output mode
Complementary Output mode
Center-Aligned PWM mode
Output override control
Special Event Trigger
PWM capture feature
Prescaler for input clock
ADC triggering with PWM
Independent PWM frequency, duty cycle and phase shift changes
Leading-Edge Blanking (LEB) functionality
Dead time compensation
Output clock chopping
Note: This family reference manual section is meant to serve as a complement to device
data sheets. Depending on the device variant, this manual section may not apply to
all dsPIC33E/PIC24E devices.
Please consult the note at the beginning of the “High-Speed PWM” chapter in the
current device data sheet to check whether this document supports the device you
are using.
Device data sheets and family reference manual sections are available for
download from the Microchip Worldwide Web site at: http://www.microchip.com
© 2010-2011 Microchip Technology Inc. DS70645C-page 14-3
Section 14. High-Speed PWM
High-Speed PWM
14
14.3 CONTROL REGISTERS
The following registers control the operation of the High-Speed PWM module:
PTCON: PWM Time Base Control Register
- Enables or disables the High-Speed PWM module
- Sets the Special Event Trigger for the ADC
- Enables or disables immediate period updates
- Selects the synchronizing source for the master time base
- Specifies synchronization settings
PTCON2: PWM Clock Divider Select Register 2
Provides the clock prescaler to the PWM master time base
PTPER: Primary Master Time Base Period Register
Provides the PWM time period value
STCON: PWM Secondary Master Time Base Control Registe (1)
- Enables or disables immediate period updates based on the secondary master time base
- Selects the synchronization source for the secondary master time base
- Specifies the synchronization setting for secondary master time base control
STCON2: PWM Secondary Clock Divider Select Register 2(1)
Provides the clock prescaler to the PWM secondary master time base
STPER: Secondary Master Time Base Period Register(1)
Provides the secondary master time base period value
MDC: PWM Master Duty Cycle Register
Provides the PWM master duty cycle value
SEVTCMP: PWM Special Event Compare Register
Provides the compare value that is used to trigger the ADC module
SSEVTCMP: PWM Secondary Special Event Compare Register(1)
Provides the compare value that is used to trigger the ADC module based on the
secondary master time base
CHOP: PWM Chop Clock Generator Register
- Provides the chop clock frequency
- Enables or disables the chop clock generator
PWMKEY: PWM Unlock Register(1)
Writes the unlock sequence to allow writes to the IOCONx and FCLCONx registers
PWMCONx: PWM Control Register
- Enables or disables fault interrupt, current-limit interrupt and primary trigger interrupt
- Provides the interrupt status for fault interrupt, current-limit interrupt and primary trigger
interrupt
- Selects the type of time base (master time base or independent time base)
- Selects the type of duty cycle (master duty cycle or independent duty cycle)
- Controls Dead Time mode
- Enables or disables Center-Aligned mode
- Controls the external PWM Reset operation
- Enables or disables immediate updates of the duty cycle, phase offset, independent time
base period
IOCONx: PWM I/O Control Register
- Enables or disables PWM pin control feature (PWM control or GPIO)
- Controls fault/current limit override values
- Enables PWMxH and PWMxL pin swapping
- Controls the PWMxH and PWMxL output polarity
- Controls the PWMxH and PWMxL output if any of the following modes is selected:
Complementary mode
Push-Pull mode
True Independent mode
Note: Not all registers are available on all devices. Refer to the “High-Speed PWM”
chapter in the specific device data sheet for availability.

Produktspecifikationer

Varumärke: Microchip
Kategori: Inte kategoriserad
Modell: dsPIC33EP256GM706
Färg på produkten: Zwart
Vikt: 3000 g
Bredd: 428 mm
Djup: 305 mm
Höjd: 22.9 mm
Användarmanual: Ja
Husmaterial: Aluminium
Blåtand: Ja
Skärm diagonal: 17.3 "
Upplösning: 1920 x 1080 Pixels
Pekskärm: Nee
Original bildförhållande: 16:9
Processorfrekvens: 2.7 GHz
Processorfamilj: Intel® Core™ i7
Processormodel: i7-5850HQ
Antal processorkärnor: 4
Wi-Fi-standarder: Wi-Fi 5 (802.11ac)
Bluetooth-version: 4.0
Vormfaktor: Clamshell
Inkluderar operativsystem: Windows 8.1
Ethernet LAN: Ja
Integrerad minneskortläsare: Ja
Kompatibla minneskort: SD, SDHC, SDXC
Processor litografi: 14 nm
Snabbstartsguide: Ja
Garantikort: Ja
Inkluderar AC-adapter: Ja
Marknadspositionering: Gamen
LED-bakgrundsbelysning: Ja
Antal USB 2.0-portar: 2
VGA (D-Sub) port(ar): 1
Antal HDMI-portar: 1
Mikrofon, linjeingång: Ja
DVI-port: Nee
Antal Ethernet LAN (RJ-45)-portar: 1
Monteringsalternativ för kabellås: Ja
Kabellåsspårtyp: Kensington
Antal inbyggda högtalare: 2
Hörlursutgångar: 1
AC-adapter, ström: 200 W
HD typ: Full HD
Inbyggd mikrofon: Ja
Internminne: 16 GB
Förvarings media: HDD+SSD
Batteritid/batteritid: - uur
Internminnestyp: DDR3L-SDRAM
Inbyggd subwoofer: Ja
Intel® Wireless Display (Intel® WiDi): Ja
Typ av panel: IPS
Antal portar USB 3.2 Gen 1 (3.1 Gen 1) Typ A: 3
Processoruttag: BGA 1364
Stepping: G0
Systembuss: 5 GT/s
Processor antal trådar: 8
PCI Express-kortplatsversion: 3.0
Processorns driftlägen: 64-bit
Processorns cache: 6 MB
Tjunction: 105 °C
Busstyp: DMI2
PCI Express-konfigurationer: 2x4, 1x8, 2x8, 1x16
Thermal Design Power (TDP): 47 W
Kodnamnsprocessor: Broadwell
Maximalt antal PCI Express-linjer: 16
Typ av processorcache: L3
ECC stöds av processor: Nee
Processorfabrikant: Intel
Operativsystems arkitektur: 64-bit
Maximalt internminne: 32 GB
Total lagringskapacitet: 1512 GB
Typ av optisk enhet: Nee
Inbyggd grafikadapter: Ja
Separat grafikadapter: Ja
Familjens inbyggda grafikadapter: Intel® Iris™ Pro Graphics
Inbyggd grafikadaptermodell: Intel® Iris™ Pro Graphics 6200
Grundläggande frekvens inbyggd grafikadapter: 300 MHz
Inbyggd grafikadapter dynamisk frekvens (max): 1100 MHz
Inbyggt grafikkort-ID: 0x1622
Maximalt minne inbyggd grafikadapter: 32 GB
Inbyggd grafikadapter DirectX-version: 11.2
Inbyggd grafikadapter OpenGL version: 4.3
Fram kamera: Ja
Numerisk knappsats: Ja
Instruktionsuppsättningar som stöds: SSE4.1, AVX 2.0, SSE4.2
Intel® My WiFi Technology (Intel® MWT): Nee
Intel® Smart Response Technology: Ja
Intel® Hyper Threading Technology (Intel® HT Technology): Ja
Intel® Turbo Boost-teknik: 2.0
Intel® Quick Sync-videoteknik: Ja
Intel® InTru™ 3D-teknik: Ja
Intel® Clear Video HD-teknik (Intel® CVT HD): Ja
Intel® Insider™: Ja
Intel® Flex Memory Access: Ja
Intel® AES nya instruktioner (Intel® AES-NI): Ja
Förbättrad Intel SpeedStep-teknik: Ja
Kör Disable Bit: Ja
Idle stater: Ja
Termisk övervakningsteknik: Ja
CPU-konfiguration (max): 1
Intel® Enhanced Halt State: Ja
Intel® Clear Video Technology för mobila internetenheter (Intel® CVT för MID): Ja
Intel® VT-x med utökade sidtabeller (EPT): Nee
Inbyggda alternativ tillgängliga: Nee
Grafik & IMC litografi: 14 nm
Intel® Small Business Advantage (Intel® SBA): Ja
Intel® Secure Key: Ja
Intel® 64: Ja
Intel® OS Guard: Ja
Intel® Virtualization Technology for Directed I/O (VT-d): Nee
Intel® Clear Video-teknik: Ja
Intel® Virtualization Technology (VT-x): Ja
Processorpaketstorlek: 37.5 x 32 x 1.8 mm
Konfliktfri processor: Ja
Intel® Identity Protection Technology (Intel® IPT): Ja
Versie Intel® Identity Protection Technology: 1.00
Versie Intel® Secure Key Technology: 1.00
Versie Intel® Smart Response Technology: 1.00
ARK ID-processor: 87719
Intel® Trusted Execution Technology: Nee
Intel® TSX: Nee
Intel® Stable Image Platform Program (SIPP): Nee
Versie Intel® Stable Image Platform Program (SIPP): 0.00
Intel® TSX-NI-version: 0.00
Intel® Anti-Theft Technology (Intel® AT): Nee
Anslutning till basstation: Nee
SmartCard-kortplats: Nee
Maximal processorturbofrekvens: 3.6 GHz
Processorkod: SR2BH
Diskret grafikadaptermodell: NVIDIA® GeForce® GTX 970M
Antal installerade SSD:er: 2
SSD-kapacitet: 256 GB
Pekdon: Touchpad
Klockhastighetsminne: 1866 MHz
Minneslayout: 2 x 8 GB
Minnesplatser: 4x SO-DIMM
SSD-gränssnitt: mSATA
Chipset moderkort: Intel HM97
Specifik grafikminnestyp: GDDR5
Grafikminne: 3 GB
Antalet installerade hårddiskar: 1
HDD kapacitet: 1000 GB
HDD rotationshastighet: 7200 RPM
Bakgrundsbelyst tangentbord: Ja
Antal Mini DisplayPort: 1
FSB-paritet: Nee
Bussprocessor på framsidan: - MHz
Intel® efterfrågebaserad växling: Nee
Typ av laddningsport: DC-in ingang
Medföljande drivrutiner: Ja
Typ CardBus PCMCIA-slot: Nee
Processorserie: Intel Core i7-5800 Mobile Series
ExpressCard-kortplats: Nee
S/PDIF-utgång: Ja
Intel® Dual Display Capable Technology: Nee
Intel® FDI-teknik: Ja
Intel® Rapid Storage Technology: Nee
Intel® Fast Memory Access: Ja
Intel® Smart Cache: Ja
Intel® Small Business Advantage (SBA)-version: 1.00
HDD storlek: 2.5 "
Power högtalare: 2 W
Grafikkort, stöd för Open GL: Ja
Intel® HD-grafik: Nee
Intel® Inbyggd Visuals-teknik: Ja
Intel® Virtualization Technology (Intel® VT): VT-x
LightScribe: Nee
Wifi: Ja
Typ produkt: Laptop
Batteriteknik: Lithium-Polymeer (LiPo)
Processorgenerering: Vijfde generatie Intel® Core™ i7
Batterijcapaciteit: 73.26 Wh

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