參數(shù)資料
型號: μPD780983
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 15/121頁
文件大?。?/td> 350K
代理商: ΜPD780983
15
CHAPTER 1 OVERVIEW OF FUNCTIONS
As a sample application for the real-time pulse unit (RPU) of the
μ
PD780988, this chapter introduces an
application for three-phase inverter control according to PWM output.
The operating environment is shown below.
CPU
Operating clock
Operating voltage
Internal ROM
Internal RAM
External extended memory
:
μ
PD780988
: System clock 8 MHz (Internal: 8 MHz)
: 5 V
: 60K bytes
: 2K byte
: Not used
1.1 PWM SIGNAL GENERATION
As shown in Figure 1-1, the PWM signal is generated by using a sawtooth (carrier) wave to modulate a sine
wave.
Figure 1-1. Use of Sawtooth Wave to Generate PWM Sine Waveform
V
U
W
U+
V+
W+
Remark
The U-, V-, and W- phases are obtained by inverting the high and low levels of the waveforms of the
U+, V+, and W+ phases.
相關PDF資料
PDF描述
μPD780984 8 Bit Single Chip Microcontrollers
μPD780986 8 Bit Single Chip Microcontrollers
μPD780988 8 Bit Single Chip Microcontrollers
μPD78196Y 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
μPD78197Y 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
相關代理商/技術參數(shù)
參數(shù)描述
PD784054GCA2 制造商:NEC 制造商全稱:NEC 功能描述:16-BIT SINGLE-CHIP MICROCONTROLLER
PD784976A 制造商:NEC 制造商全稱:NEC 功能描述:16-Bit Single-Chip Microcontroller
PD7869 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic
PD78F0134 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers