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    PIC18F2431 POWER CONTROL PWM Search Results

    PIC18F2431 POWER CONTROL PWM Result Highlights (6)

    Part ECAD Model Manufacturer Description Download Buy
    TPD4207F Toshiba Electronic Devices & Storage Corporation Intelligent power device 600V (High voltage PWM DC brushless motor driver) Visit Toshiba Electronic Devices & Storage Corporation
    TPD4204F Toshiba Electronic Devices & Storage Corporation Intelligent power device 600V (High voltage PWM DC brushless motor driver) Visit Toshiba Electronic Devices & Storage Corporation
    TPD4162F Toshiba Electronic Devices & Storage Corporation Intelligent power device 600V (High voltage PWM DC brushless motor driver) Visit Toshiba Electronic Devices & Storage Corporation
    TPD4206F Toshiba Electronic Devices & Storage Corporation Intelligent power device 500V (High voltage PWM DC brushless motor driver) Visit Toshiba Electronic Devices & Storage Corporation
    TPD4164F Toshiba Electronic Devices & Storage Corporation Intelligent power device / VBB=600V / Iout=2A/ Surface mount type / HSSOP31 Visit Toshiba Electronic Devices & Storage Corporation
    TPD4164K Toshiba Electronic Devices & Storage Corporation Intelligent power device / VBB=600V / Iout=2A/ Through hole type / HDIP30 Visit Toshiba Electronic Devices & Storage Corporation

    PIC18F2431 POWER CONTROL PWM Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    an IR2153

    Abstract: fixed 230v AC to 30V dC converter circuit diagram power supply using IR2153 IR3104 230v dc motor drive circuit diagram Diagram of motor speed control 115V AC IR3101 hp 230v AC to 30V dC converter circuit diagram 230V AC to 5V DC ic IR2153 equivalent
    Text: IRADK31 revA International Rectifier • 233 Kansas Street, El Segundo, CA 90245 • USA 1/3 HP- Phase Brushless DC BLDC Motor Controller Using IR3101/3/4 By Roger N. Khourey TOPICS COVERED Overview Features General Safety Note, Installation & Protection


    Original     		PDF IRADK31 IR3101/3/4 120VAC 230VAC. MCP6544 an IR2153 fixed 230v AC to 30V dC converter circuit diagram power supply using IR2153 IR3104 230v dc motor drive circuit diagram Diagram of motor speed control 115V AC IR3101 hp 230v AC to 30V dC converter circuit diagram 230V AC to 5V DC ic IR2153 equivalent

    schematic diagram inverter 24V to 3 PHASE bldc

    Abstract: ED2324 3 phase inverter schematic diagram pic ac motor three phase BLDC motor PIC mosfet driver PIC dc motor speed control 5V to 24V pic c code 3 phase inverter schematic diagram pic ac motor sensorless bldc motor with pic controller three phase BLDC motor PIC mosfet driver code microchip AN885 sensorless bldc motor driver circuit using dsp
    Text: AN970 Using the PIC18F2431 for Sensorless BLDC Motor Control Author: Padmaraja Yedamale Microchip Technology Inc. INTRODUCTION Brushless Direct Current BLDC motors have many advantages over other types of motors available in the industry. Previously, we have discussed the working


    Original     		PDF AN970 PIC18F2431 AN885, PIC18FXX31 AN899, DS00970A-page schematic diagram inverter 24V to 3 PHASE bldc ED2324 3 phase inverter schematic diagram pic ac motor three phase BLDC motor PIC mosfet driver PIC dc motor speed control 5V to 24V pic c code 3 phase inverter schematic diagram pic ac motor sensorless bldc motor with pic controller three phase BLDC motor PIC mosfet driver code microchip AN885 sensorless bldc motor driver circuit using dsp

    230v dc motor drive circuit diagram

    Abstract: 220VAC single phase v/F AC inverter design power supply using IR2153 ir2153 application IR3104 IR2153 IC Voltage regulator LM7805 ir2153 shutdown IR3101 230V AC to 5V DC ic
    Text: IRADK31 International Rectifier • 233 Kansas Street, El Segundo, CA 90245 • USA 1/3 HP- Phase Brushless DC BLDC Motor Controller Using IR3101/3/4 By Roger N. Khourey TOPICS COVERED Overview Features General Safety Note, Installation & Protection System Description


    Original     		PDF IRADK31 IR3101/3/4 IRADK31 120VAC 230VAC. MCP6544 230v dc motor drive circuit diagram 220VAC single phase v/F AC inverter design power supply using IR2153 ir2153 application IR3104 IR2153 IC Voltage regulator LM7805 ir2153 shutdown IR3101 230V AC to 5V DC ic

    RS-485 to usart pic interface circuit

    Abstract: pic18 real time clock c code LCD connection to PIC18f PIC18f4550 dc motor speed control pic18f4550 mplab c18 project lcd PIC18F mplab CAN bus source code PIC18F4550 real time clock Ultrasonic Range Finder LCD PIC zigbee module with pic microcontroller PIC18f4550 assembly programming PWM
    Text: PIC18F Development Tools Get Your Design Started Quickly with PIC18F Development Tools FEATURED SOFTWARE TOOLS: MPLAB C18 SW006011 The MPLAB C18 compiler is a full-featured ANSI-compliant C compiler for the PIC18 family of 8-bit MCUs. MPLAB C18 is a fully integrated component of Microchip’s MPLAB


    Original     		PDF PIC18F SW006011) PIC18 60-day com/C18. DS39673C DS39673C* RS-485 to usart pic interface circuit pic18 real time clock c code LCD connection to PIC18f PIC18f4550 dc motor speed control pic18f4550 mplab c18 project lcd PIC18F mplab CAN bus source code PIC18F4550 real time clock Ultrasonic Range Finder LCD PIC zigbee module with pic microcontroller PIC18f4550 assembly programming PWM

    DC SERVO MOTOR CONTROL circuit

    Abstract: PIC18FXX31 Dspic30f3011 APPLICATIONS AN857 Brushless DC Motor Control Made Easy pic16f72 3 PHASE MOTOR CONTROL PIC bldc motor speed control Speed Control of 3-Phase Induction motor pic16f684 pwm output on 2 pins Phase Induction motor speed control using dsPIC pic16f72 inverter
    Text: Motor Control Motor Control Design Solutions Motor Control Design Solutions Microchip Technology offers a broad product portfolio that provides a complete system solution for your stepper motor, brushed DC motor, AC induction motor, variable speed brushless DC motor and switched


    Original     		PDF DS00896B DS00896B* DC SERVO MOTOR CONTROL circuit PIC18FXX31 Dspic30f3011 APPLICATIONS AN857 Brushless DC Motor Control Made Easy pic16f72 3 PHASE MOTOR CONTROL PIC bldc motor speed control Speed Control of 3-Phase Induction motor pic16f684 pwm output on 2 pins Phase Induction motor speed control using dsPIC pic16f72 inverter

    RC5 encoder

    Abstract: PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431
    Text: PIC18F2331/2431/4331/4431 28/40-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology, High Performance PWM and A/D Enhanced 14-bit Resolution PWM Module: Multi-Purpose Timer Module: • • • • • • 16-bit timer/counter with external clock input:


    Original     		PDF PIC18F2331/2431/4331/4431 28/40-Pin 14-bit 16-bit D-85737 DS30488A-page RC5 encoder PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431

    PID control dsPIC dc motor speed control

    Abstract: DC MOTOR SPEED CONTROL USING IGBT single phase ac motor speed control pwm based bidirectional dc motor speed control microcontroller based speed control of ac motor Stepper Motor Circuit using pic microcontroller space-vector PWM by using microcontroller dc motor for 24v pic16f72 3 PHASE MOTOR CONTROL PIC bldc motor speed control
    Text: Motor Control Motor Control Design Solutions www.microchip.com/motor Motor Control Design Solutions Mixed-Signal Power Input 8-bit PIC Microcontroller or 16-bit dsPIC® Digital Signal Controller Feedback MOSFET or IGBT Driver Microchip Technology offers a broad product


    Original     		PDF 16-bit DS00896D DS00896D* PID control dsPIC dc motor speed control DC MOTOR SPEED CONTROL USING IGBT single phase ac motor speed control pwm based bidirectional dc motor speed control microcontroller based speed control of ac motor Stepper Motor Circuit using pic microcontroller space-vector PWM by using microcontroller dc motor for 24v pic16f72 3 PHASE MOTOR CONTROL PIC bldc motor speed control

    PIC18F2431 pwm

    Abstract: PIC18F4431 with PWM PIC18F2431 I2C Application of PIC18F2331 in motor speed control PIC18F2431 pic18f4431 PIC18F2431-1 2431 DIP quadrature encoder 4X PIC18F2331-2431-4331-4431
    Text: PIC18F2331/2431/4331/4431 28/40-Pin Enhanced FLASH Motor Control Microcontroller Product Brief High Performance RISC CPU: Analog Features: • • • • • • 10-bit Analog-to-Digital Converter A/D with up to 9 channels: - Simultaneous sampling on 2 channels


    Original     		PDF PIC18F2331/2431/4331/4431 28/40-Pin 10-bit 16-level D-81739 D-82152 DS39567B-page PIC18F2431 pwm PIC18F4431 with PWM PIC18F2431 I2C Application of PIC18F2331 in motor speed control PIC18F2431 pic18f4431 PIC18F2431-1 2431 DIP quadrature encoder 4X PIC18F2331-2431-4331-4431

    PIC18f4431 PWM example codes

    Abstract: sdip-28 full adder bcd jedec package MO-220 18f2431 Analog devices marking Information pic 4431 44-Pin QFN PIC18F2331-2431-4331-4431 ds39616b
    Text: PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 Rev. A3 Silicon/Data Sheet Errata The PIC18F2331/2431/4331/4431 Rev. A3 parts you have received conform functionally to the Device Data Sheet DS39616B , except for the anomalies described below. All the issues listed here will be addressed in future


    Original     		PDF PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 DS39616B) PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431 PIC18f4431 PWM example codes sdip-28 full adder bcd jedec package MO-220 18f2431 Analog devices marking Information pic 4431 44-Pin QFN PIC18F2331-2431-4331-4431 ds39616b

    schematic diagram 48v bldc motor speed controller

    Abstract: PWM Inverter using PIC Microcontroller 3 phase inverter schematic diagram pic ac motor code hex 48v to 230v inverters circuit diagram PIC18f dc motor speed control 24V 12v to 230v inverters circuit diagrams pic18f MCU Family Reference Manual DS51554 PIC microcontroller based sensorless speed control dc motor speed control circuit diagram with dsPIC
    Text: PICDEM MC LV Development Board User’s Guide 2006 Microchip Technology Inc. DS51554B Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet.


    Original     		PDF DS51554B DS51554B-page schematic diagram 48v bldc motor speed controller PWM Inverter using PIC Microcontroller 3 phase inverter schematic diagram pic ac motor code hex 48v to 230v inverters circuit diagram PIC18f dc motor speed control 24V 12v to 230v inverters circuit diagrams pic18f MCU Family Reference Manual DS51554 PIC microcontroller based sensorless speed control dc motor speed control circuit diagram with dsPIC

    18f2431

    Abstract: PIC18f4431 PWM example codes pic18f2231 pic 4431 D005B PIC18F2X31 PWM525 PIC18F2331-2431-4331-4431 4431 4431 8 PIN
    Text: PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 Data Sheet Errata In the Device Data Sheet DS39616B , the following clarifications and corrections should be noted. Any silicon issues related to the PIC18F2331/2431/4331/4431 will be reported in a separate silicon errata. Please


    Original     		PDF PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 DS39616B) DS80239A-page 18f2431 PIC18f4431 PWM example codes pic18f2231 pic 4431 D005B PIC18F2X31 PWM525 PIC18F2331-2431-4331-4431 4431 4431 8 PIN

    pic16f72 inverter circuit diagram with components

    Abstract: pic16f72 inverter MCP5002 pwm c code 3 phase inverter PIC16F72 inverter application notes three phase bridge inverter in 180 degree and 120 pic16f72 3 PHASE MOTOR CONTROL pic16f72 circuit diagram with components PIC16F72 inverter diagram 1EMU06
    Text: AN967 Bidirectional VF Control of Single and 3-Phase Induction Motors Using the PIC16F72 Author: Padmaraja Yedamale Microchip Technology Inc. INTRODUCTION Single-phase induction motors are extensively used in appliances and industrial controls. The Permanent Split


    Original     		PDF AN967 PIC16F72 AN887) AN887 PIC18 AN843) DS00967A-page pic16f72 inverter circuit diagram with components pic16f72 inverter MCP5002 pwm c code 3 phase inverter PIC16F72 inverter application notes three phase bridge inverter in 180 degree and 120 pic16f72 3 PHASE MOTOR CONTROL pic16f72 circuit diagram with components PIC16F72 inverter diagram 1EMU06

    MCP6132

    Abstract: MCP6131 dsPIC30F4010 pic16f72 full instruction set mcp68 dsPIC30F5010 4096x16 ram Serial Flash pdip pic16f72 oscillator PIC18F2431 pwm
    Text: FUTURE MICROCHIP PRODUCTS PICmicro MICROCONTROLLER MCU PRODUCTS Program Memory Analog Digital EEPROM Data Max OTP/ 8-Bit I/O Speed PWM BOR/ CCP/ FLASH ROM Memory RAM ADC Other Features Product Bytes Bytes Pins Packages Bytes Words Words Channels Comparators 10-Bit Timers/WDT Serial I/O MHz ICSPTM PBOR PLVD ECCP


    Original     		PDF 10-Bit PIC12FXXX PIC16C5X/PIC12CXXX, 200ns 1024x14 PIC12F629 PIC12F675 10-bit) PIC16FXXX MCP6132 MCP6131 dsPIC30F4010 pic16f72 full instruction set mcp68 dsPIC30F5010 4096x16 ram Serial Flash pdip pic16f72 oscillator PIC18F2431 pwm

    PIC33F

    Abstract: dspic33f example codes QEI programming in C several PWM outputs PIC18F dsPICDEM MCSM DEVELOPMENT BOARD PIC16F1823 example codes pic c code 3 phase induction AC300022 PID control dsPIC servo motor position control dspic30f motor control example codes pic16f1823 usart c code
    Text: Motor Control Spring 2010 Motor Control Design Solutions www.microchip.com/motor Discover Microchip’s Comprehensive Motor Control Solutions Got a tight schedule? We provide free motor control software with application notes and schematics for most motor control algorithms to shorten your


    Original     		PDF 16-bit DS00896G DS00896G* PIC33F dspic33f example codes QEI programming in C several PWM outputs PIC18F dsPICDEM MCSM DEVELOPMENT BOARD PIC16F1823 example codes pic c code 3 phase induction AC300022 PID control dsPIC servo motor position control dspic30f motor control example codes pic16f1823 usart c code

    pic16f72 3 PHASE MOTOR CONTROL

    Abstract: PIC16F72 inverter application notes pwm c code 3 phase inverter pic sine inverter PWM Inverter using PIC Microcontroller pic16f72 inverter pic16f72 inverter circuit diagram with components three phase bridge inverter in 180 degree and 120 three phase bridge inverter in 180 degree and 120 using pic18 microcontroller MCP5002
    Text: AN967 Bidirectional VF Control of Single and 3-Phase Induction Motors Using the PIC16F72 Author: Padmaraja Yedamale Microchip Technology Inc. INTRODUCTION Single-phase induction motors are extensively used in appliances and industrial controls. The Permanent Split


    Original     		PDF AN967 PIC16F72 AN887) AN887 PIC18 AN843) DS00967A-page pic16f72 3 PHASE MOTOR CONTROL PIC16F72 inverter application notes pwm c code 3 phase inverter pic sine inverter PWM Inverter using PIC Microcontroller pic16f72 inverter pic16f72 inverter circuit diagram with components three phase bridge inverter in 180 degree and 120 three phase bridge inverter in 180 degree and 120 using pic18 microcontroller MCP5002

    dspic30f motor control example codes

    Abstract: PID control dsPIC servo motor position control 1 HP SINGLE PHASE induction motor speed control using pwm inverter 3 phase ac motor speed control pic code PIC18f example codes sensorless bldc c source code dspic PI control PIC bldc motor speed control PID PIC16f dc motor control three phase BLDC motor PIC mosfet driver code Dspic30f3011 pwm sample code
    Text: Motor Control September 2008 Motor Control Design Solutions www.microchip.com/motor Discover Microchip’s Comprehensive Motor Control Solutions Mixed-Signal Power Torque Speed Input Direction Position 8-bit PIC Microcontroller or 16-bit dsPIC® Digital


    Original     		PDF 16-bit DS00896F DS00896F* dspic30f motor control example codes PID control dsPIC servo motor position control 1 HP SINGLE PHASE induction motor speed control using pwm inverter 3 phase ac motor speed control pic code PIC18f example codes sensorless bldc c source code dspic PI control PIC bldc motor speed control PID PIC16f dc motor control three phase BLDC motor PIC mosfet driver code Dspic30f3011 pwm sample code

    PIC18FXX31

    Abstract: PIC18F4431 PIC18F2331-2431-4331-4431 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4X21
    Text: PIC18F2331/2431/4331/4431 FLASH Microcontroller Programming Specification 1.0 DEVICE OVERVIEW 2.1 In High Voltage ICSP mode, the PIC18FXX31 requires two programmable power supplies: one for VDD and one for MCLR/VPP. Both supplies should have a minimum resolution of 0.25V. Refer to Section 6.0 for


    Original     		PDF PIC18F2331/2431/4331/4431 PIC18FXX31 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431 PIC18FXX31 D-85737 NL-5152 PIC18F4431 PIC18F2331-2431-4331-4431 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4X21

    PIC18f4431 PWM example codes

    Abstract: pic 4431 OVDCON PIC18F2331-2431-4331-4431 BRG16 D026 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431
    Text: PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 Rev. A3 Silicon Errata The PIC18F2331/2431/4331/4431 parts you have received conform functionally to the Device Data Sheet DS39616 , except for the anomalies described below. Any Data Sheet Clarification issues related to the


    Original     		PDF PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 DS39616) PIC18F2331 PIC18F2431 DS80192C-page PIC18f4431 PWM example codes pic 4431 OVDCON PIC18F2331-2431-4331-4431 BRG16 D026 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431

    3 phase inverter schematic diagram pic ac motor

    Abstract: sine wave inverter schematic and firmware PID control PIC18 an843, pic18 AN900 microchip three phase bridge inverter in 180 degree and 120 using pic18 microcontroller ds00887 ACIM control with the PIC18F452 and an843 AN900 PIC three phase bridge inverter in 180 degree and 120
    Text: AN900 Controlling 3-Phase AC Induction Motors Using the PIC18F4431 Author: Jon Burroughs Microchip Technology Inc. The three peripherals and their features are: 1. INTRODUCTION Previous Microchip authors Parekh and Yedamale have described the implementation of a 3-phase AC


    Original     		PDF AN900 PIC18F4431 AN843) PIC18F452. PIC16F7X7 AN889) D-85737 NL-5152 DS00900A-page 3 phase inverter schematic diagram pic ac motor sine wave inverter schematic and firmware PID control PIC18 an843, pic18 AN900 microchip three phase bridge inverter in 180 degree and 120 using pic18 microcontroller ds00887 ACIM control with the PIC18F452 and an843 AN900 PIC three phase bridge inverter in 180 degree and 120

    PIC18FXX31

    Abstract: C668 transistor pic18f4331/4431 PIC18F4431 with PWM PIC18F2331-2431-4331-4431 PIC18F4* Programming Specification pic32 PWM PIC18F2331 PIC18F2431 PIC18F4331
    Text: PIC18F2331/2431/4331/4431 Flash Microcontroller Programming Specification 1.0 DEVICE OVERVIEW 2.1 In High Voltage ICSP mode, the PIC18FXX31 requires two programmable power supplies: one for VDD and one for MCLR/VPP. Both supplies should have a minimum resolution of 0.25V. Refer to Section 6.0 for


    Original     		PDF PIC18F2331/2431/4331/4431 PIC18FXX31 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431 PIC18FXX31 DS30500B-page C668 transistor pic18f4331/4431 PIC18F4431 with PWM PIC18F2331-2431-4331-4431 PIC18F4* Programming Specification pic32 PWM PIC18F2331 PIC18F2431 PIC18F4331

    SK2 diode

    Abstract: No abstract text available
    Text: Application Note 1896 Author: Richard Garcia HIP2103, HIP2104 Evaluation Board User’s Guide Introduction The HIP2103_4MBEVAL1Z is an evaluation tool for the HIP2103 and HIP2104 half bridge MOSFET drivers. This tool consists of a mother board and HIP2103DBEVAL1Z and


    Original     		PDF HIP2103, HIP2104 HIP2103 HIP2103DBEVAL1Z HIP2104DBEVAL1Z HIP2104. JUMPER-3-100 SK2 diode

    AC300020

    Abstract: pic16f72 3 PHASE MOTOR CONTROL PIC stepper pwm ac chopper Permanent Magnet brushless AC PIC16F684 DC MOTOR SPEED CONtrol pwm pic pic16f72 inverter Switched reluctance PICDEM MC LV 6 switched reluctance motor
    Text: 모터�컨트롤 모터�컨트롤�설계�솔루션 www.microchip.com/motor 모터�컨트롤�설계�솔루션 마이크로칩�테크놀로지는� stepper�모터,� brushed DC�모터,� AC induction�모터,� PMSM Permanent Magnet Synchronous �모터,� brushless DC�모터,�


    Original     		PDF PIC16F684 PIC16F716 PIC16F7X7 dsPIC30F5015 TC141X TC445X TC446X MCP606, MCP616, MCP6021 AC300020 pic16f72 3 PHASE MOTOR CONTROL PIC stepper pwm ac chopper Permanent Magnet brushless AC PIC16F684 DC MOTOR SPEED CONtrol pwm pic pic16f72 inverter Switched reluctance PICDEM MC LV 6 switched reluctance motor

    PIC16f690 example codes

    Abstract: PIC18f4520 enc28j60 spi example codes PIC18f4431 PWM example codes PIC16f877a example code spi master configuration PIC16f876 example codes PIC18f4520 PWM example codes RF transmitter 433.92 3 pin 12v PIC16f877a example uart codes PIC16F84 example codes picdem 2 plus demo board pic18f4520 examples
    Text: 1st Half 2005 January - March 2005 Product Selector Guide Product Profile PICmicro Microcontrollers Microchip’s PICmicro® family of microcontrollers combine high performance, low cost and small package size to offer the best price/ performance ratio in the industry. Based on a powerful RISC core, the PICmicro architecture provides users an easy migration path


    Original     		PDF DS00148K1 PIC16f690 example codes PIC18f4520 enc28j60 spi example codes PIC18f4431 PWM example codes PIC16f877a example code spi master configuration PIC16f876 example codes PIC18f4520 PWM example codes RF transmitter 433.92 3 pin 12v PIC16f877a example uart codes PIC16F84 example codes picdem 2 plus demo board pic18f4520 examples

    PIC18f4431 PWM example codes

    Abstract: BRG16 D026 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431 OVDCON
    Text: PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 Rev. A2 Silicon Errata The PIC18F2331/2431/4331/4431 parts you have received conform functionally to the Device Data Sheet DS39616 , except for the anomalies described below. Any Data Sheet Clarification issues related to the


    Original     		PDF PIC18F2331/2431/4331/4431 PIC18F2331/2431/4331/4431 DS39616) DS80180C-page PIC18f4431 PWM example codes BRG16 D026 PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431 OVDCON