Manuals / Freescale Semiconductor / Home Audio / Stereo System

Freescale Semiconductor M68HC08 manual Figure A-6.Power supply

Models: M68HC08

1 72

Page 65

DCB

1		C23

+
		1uF
2		450V

GND

22uF

35V

C20

TL-RAD EZK

IC3

VCC

4.7mH

GND

DRAIN

D12

NCP1010-SOT223

MURA160

	C24	GND	U3
1	2	4	1
1nF 25V		3	2
		3	2
			SFH6106

15V5V

1		C21	2		C22

+


		100uF	1		1uF
2		35V	1		25V
2		35V			25V

	GND			GND

15V/1

D14	R32
BZV55C13	390R

	D13
GND	D13	2
	BZV55C5V1		C25


		1	220nF

GNDGND

Figure A-6. Power supply

Page 65

Image 65

Freescale Semiconductor M68HC08 manual Figure A-6.Power supply

Contents

DRM067 Rev. 1 12/2005 Designer Reference ManualM68HC08 Microcontrollers Page Designer Reference Manual Freescale Semiconductor Draft 2 for ReviewChapter Control Theory Contents Chapter IntroductionChapter Reference Design Chapter Hardware DesignAppendix A. Schematics and Part List Chapter Demo SetupChapter Software Design Appendix B. References1.1 Introduction 1.2 Benefits of this SolutionChapter Introduction 1.3 The MC68HC908LB8 Microcontroller 7-bitkeyboard interrupt Freescale Semiconductor Introduction2.1 Introduction Chapter Control Theory2.1.1 Fluorescent Lamp Control Theory 2.1.2 Fluorescent Lamp OperationGas filling mixture Freescale Semiconductor 2.1.3 Controlling the Fluorescent LampFreescale Semiconductor 2.2.1 Introduction 2.2PFC Control TheoryFreescale Semiconductor Freescale Semiconductor Control Theory MCU PWM PWM1 FAULT PINDC Bus Voltage ZeroFigure 2-8.Generated Input Current Waveform 2.2.4 Concept SummaryFreescale Semiconductor Control Theory3.1 Application Outline 3.2 Dimmable Light Ballast CharacteristicsChapter Reference Design Table 3-1.Light Ballast Characteristics 3.3 Application Description3.3.1 Light Ballast Control 3.3.2 Power Factor CorrectionCONTROL BOARD MC68HC908LB83.3.3 Protection Features 3.4 Software Specification3.5 Hardware Specification 4.2 System Modules Chapter Hardware Design4.1 Hardware Implementation Hardware Design 4.2.1 Input and PFCFigure 4-3.Dimmable Light Ballast - Input and PFC Freescale Semiconductor 4.2.2 InverterSystem Modules Figure 4-4.Dimmable Light Ballast - InverterFreescale Semiconductor HALF BRIDGE4.2.3 Microcontroller System Modules SignalPin number TOP BOT Comp Comp Out Zero DetectTable 4-2.J2 Interface Header SignalHardware Design Pin numberTable 4-3.Supplied Voltages 4.2.4 Power SupplyFigure 4-6.Dimmable Light Ballast - Power Supply Freescale Semiconductor Hardware Design5.2 Control Algorithm Description Chapter Software Design5.1 Introduction 5.2.1.2 Phase Shift Synchronization 5.2.1 Power Factor Correction Control5.2.1.4 Generation of Output PFC Control SIgnal 5.2.1.1 DC-busVoltage Control5.2.2.2 Luminance Level Control Tube Run Mode 5.2.2 Light Ballast Control5.2.2.1 Tube Start Mode ireq = A ⋅ ek ⋅ ireqAD + q q = itADmin - A ⋅ ek ⋅ ADminrounditmin ⋅ ADmax ⁄ imax rounditmax ⋅ ADmax ⁄ imax5.3 Software Implementation 5.3.1 Initialization Setup5.3.1.1 PWM Setup PWM Frequency = 5.3.1.2 HRP SetupBusFrequency Hz Hz5.3.2 Main Program Loop Freescale Semiconductor 5.3.3 Synchronization Interrupt Routine5.3.4 Sine Wave Generation Interrupt Routine Software Design Set 1ms flag and reset 1ms counterinterrupt void pwmISRvoid Read new PWM value from table * sineGain5.3.4.1 Fault Detection and Processing Figure 5-6.Flow Chart - timovISR and faultISR 5.4 Detailed Software DescriptionSoftware Design Stop HRPDetailed Software Description Figure 5-7.Flow Chart - Main Flow, PartFreescale Semiconductor Figure 5-8.Flow Chart - Main Flow, PartSoftware Design Freescale Semiconductor Figure 5-9.Flow Chart - Main Flow, PartDetailed Software Description Freescale Semiconductor Figure 5-10.Flow Chart - Main Flow, PartSoftware Design 5.5.1.4 Timer Interface Module TIM 5.5.1.1 High Resolution PWM HRP5.5 Microcontroller Usage 5.5.1 Microcontroller Peripheral Usage5.5.3 I/O Usage 5.6 Definitions of Constants and VariablesSoftware Design I/O pin5.6.1 System Setup Definitions defines the minimum HRP frequency in kHz 5.6.2 System Constants and Variables Page 6.1 Hardware Setup Chapter Demo Setup6.2 Software Setup 6.2.1 Required Software Tools6.2.4 Project Files 6.2.3 Executing the Application\prm\P&E FCS linker.prm, linker program file \Sources\pi controller.c, PI regulators fileA.1 Schematics Appendix A. Schematics and Part ListPFC Current Sense 2.7mHComp PFC GateComp PFC Current SensePFC Gate Zero DetectDCB TOP BOT Figure A-3.InverterO1 O2 O3 O4 O5 O6 O7 O8 COM LOSerial Data TOP BOT Comp - Comp Out Zero DetectSerial Data DCB Divider Tube Current Tube Current Tube Voltage differenceSerial Data5 GNDSerial Data DCB Divider Tube Current Tube Current Tube Voltage differenceFigure A-6.Power supply DESIGNATORS A.2 Parts ListQUANTITY DESCRIPTIONQUANTITY DESIGNATORSDESCRIPTION MANUFACTURERFreescale Semiconductor Appendix B. References Freescale Semiconductor Page Home Page How to Reach UsE-mail USA/Europe or Locations Not Listed