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Freescale Semiconductor M68HC08 manual PFC Current Sense, Comp, PFC Gate, Zero Detect, PWM1

Models: M68HC08

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Page 61


				1	1
	J1					C1
						10nF 275V X2
						10nF 275V X2
PM100-INP_CONN-6				2	2
		6						L6
	I6	6						L6

		5						CMFIL2
	I5	5						CMFIL2

			4
	NC		4
	NC		3
	I3		3
	I3		2
	I2		2
	I1	1		1		2
	I1
					C5
				4n7 250/1000V Y2

							GND

R11

3K0

R14 2K0

PFC Current Sense

C8 82pF

GND

1 4

3 2

Comp -

2.7mH

PFCIND3

JP6

DF1510S

150nF 275V X2

AC2

DC+

DCB

CONN/HDR/2X1

RV1

MURS160T3

275V

10nF 630V TC356 +

560K

22uF 450V

GND

PFC Gate

SPP04N60S5

AC1

DC-

2R7

560K

GND

220K

PFC Current Sense

2									R6
1						15V			R6
1									510K
R5									510K
R5
220K									2
2									DCB Divider
2						1	15V/1		1
1						R35	15V/1		R8
1								C6
R7					Zero Detect
					Zero Detect	0R			18K
		1				0R		100nF	18K
220K	D15	1				R36 0R	R37 0R	100nF
220K	D15		R9			R36 0R	R37 0R
	BAT48		R9	C27		2			2
2			47K	1n5		1
2				1n5		1
		2				R34	GND		GND
		GND		GND		0R
		GND		GND
	D2					2
	D2
	BZV55C5V6				C7
					C7
	GND			1	100nF
	GND				R10
					R10
					6K8
5V					GND	C
				2	B	C
					B	Q2
						BC846B
C10						E
C10					R13		PFC Gate
220nF							PFC Gate
220nF						E
					620R	E
					B	Q3
GND						BC856B
				D		C
				D
	PWM1			G	Q4
	PWM1

				S	MMBF0201
						GND
				GND

Figure A-2. Input and PFC for discontinuous conduction mode HW variation

Page 61

Image 61

Freescale Semiconductor M68HC08 manual PFC Current Sense, Comp, PFC Gate, Zero Detect, PWM1

Contents

M68HC08 Microcontrollers Designer Reference ManualDRM067 Rev. 1 12/2005 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. ReferencesChapter Introduction 1.2 Benefits of this Solution1.1 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 TheoryChapter Reference Design 3.2 Dimmable Light Ballast Characteristics3.1 Application Outline Table 3-1.Light Ballast Characteristics 3.3 Application Description3.3.1 Light Ballast Control 3.3.2 Power Factor CorrectionCONTROL BOARD MC68HC908LB83.5 Hardware Specification 3.4 Software Specification3.3.3 Protection Features 4.1 Hardware Implementation Chapter Hardware Design4.2 System Modules 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 numberFigure 4-6.Dimmable Light Ballast - Power Supply 4.2.4 Power SupplyTable 4-3.Supplied Voltages Freescale Semiconductor Hardware Design5.1 Introduction Chapter Software Design5.2 Control Algorithm Description 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 Control5.2.2.1 Tube Start Mode 5.2.2 Light Ballast Control5.2.2.2 Luminance Level Control Tube Run 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 5.3.4 Sine Wave Generation Interrupt Routine 5.3.3 Synchronization Interrupt RoutineFreescale Semiconductor 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, PartSoftware Design Figure 5-8.Flow Chart - Main Flow, PartFreescale Semiconductor Detailed Software Description Figure 5-9.Flow Chart - Main Flow, PartFreescale Semiconductor Software Design Figure 5-10.Flow Chart - Main Flow, PartFreescale Semiconductor 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