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PIC16F1826-E/SS 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SSOP-20
描述:
18 /20/ 28引脚闪存单片机采用纳瓦XLP技术 18/20/28-Pin Flash Microcontrollers with nanoWatt XLP Technology
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PIC16F1826-E/SS数据手册
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4
Core Independent Peripherals for 8-bit PIC Microcontrollers
8-bit Peripheral Highlights
Complementary Waveform Generator (CWG), Complimentary Output Generator (COG)
Key Features
■ Provides non-overlapping complementary waveform
■ Various input sources inclusive of:
• Comparators, PWM, CLC, NCO
■
Blanking control for transient filtering
1
(available with COG)
■
Phase control for output delay
2
(available with COG)
■ Independent rise and fall
3
/
4
■ Dead band control
■ Auto shutdown/restart
■ Polarity control
Benefits
■ Works with multiple peripherals
■ Fewer components and less space
■ Lower power
■ Improved switching efficiencies
Example Applications
■ Switch mode power supplies
■ LED/fluorescent lighting
■ Battery charger
■ Motor drive
■ Power factor correction
■ Class D audio amplifiers
Complementary Output Generator (COG)
Example: Half Bridge Circuit Using CWG
,
Example: LED Buck Converter
Input Source
1 - Blanking control, for transient filtering
Electrical
Transient
Complementary Outputs
2 - Phase control
3 - Rising edge deadband control
4 - Falling edge deadband control
1
2
3
4
CWG/COG
Out0
Source
Input
Out1
Comparator
PWM
External
Input
■ Automates generation of the complementary
waveforms necessary for Half Bridge control
■ Programmable dead band control to protect against
shoot through
■ Auto Shutdown can be based on external inputs,
software, CLC, or other peripherals
■ Programmable blanking control available to filter out
transient inputs
Motor
PWM
CWG
Comp
Output
Auto
Shutdown
Dead Band
Control
PIC
®
Microcontroller
■ Switching frequency determined by the PWM
■ Enables synchronous switching, increasing
power conversion efficiency
■ Programmable dead band control protects
the synchronous switches against
shoot through
■ Advanced features to provide auto
shutdown, auto restart, and polarity control
PIC
®
Microcontroller
PWM
COG
Comp
Output
Auto
Shutdown
Dead Band
Control
Voltage
Reference
–
+
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