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NXP Semiconductors 56800E manual available for free PDF download: Reference Manual
NXP Semiconductors 56800E Reference Manual (180 pages)
16-bit Digital Signal Controllers
Brand:
NXP Semiconductors
| Category:
Controller
| Size: 4 MB
Table of Contents
Table of Contents
3
Chapter 1 Online UPS Theory and Description
17
Introduction
17
The Concept of an Online UPS
17
Input Power Factor Control (PFC)
17
A Basic Online UPS
17
DC-To-DC Converters
18
Phase Locked Loop (PLL)
18
Bypass Operation
18
Rail Ripple
19
Pulse Width Modulation (PWM)
19
A Controller Solution to Control a UPS
19
System Overview
20
UPS Simplified Schematic
20
Prototype UPS
20
System Actuators
21
Relationship between a 56800E and Power Actuators
21
Input Rectifier Theory of Operation
22
Simplified Schematic Diagram of the UPS
22
Rectifier Soft Start
23
Input Rectifier
23
Full Wave-Controlled Rectifier Bridge
24
Relationship between Rectifier Soft Start Operation / Actuator Signals
24
And the AC Main Line Voltage
24
Power Factor Corrector (PFC) Theory of Operation
25
Typical Rectifier Current Vs. AC Line Voltage
25
PFC Current and Voltage Waveforms
26
PFC Schematic
27
Resulting Parallel Connection between C3 and C7
29
Battery Charger Theory of Operation
30
Battery Charger Schematic
30
Battery Booster Theory of Operation
31
Battery Booster Schematic
31
Drive Signals for Battery Booster Switches
32
Inverter Theory of Operation
34
Inverter Schematic Diagram
34
Pulse Width Modulation
35
Auxiliary Circuits
35
Generation of a PWM Signal
35
Power Supplies and Isolation Circuitry
36
H Bridge Configuration Used to Provide Multiple Floating Power Supplies
36
Waveforms at a and B
37
Current Waveforms
38
Sensing Circuits and Reference Voltage Generator
39
Control Power Supply
39
Partial View of the Auxiliary Power Supply and Optoisolation Network
40
General Design of the Sensing Circuits
40
Voltage Reference Supply
41
Voltage Reference Generator
41
Silicon Controlled Rectifier (SCR) Gate Drivers
42
IGBT and MOSFET Gate Drivers Circuit
42
SCR Gate Driver
42
IGBT and MOSFET Gate Driver
42
Power Transfer Circuits (Bypass) Theory of Operation
43
Bypass Relay Configuration
43
Overcurrent Protection
44
Relay Driver
44
Overcurrent Protection for Rectifier and Inverter
45
Overcurrent Protection for Charger and Push-Pull
45
Battery Temperature Sensing
46
Battery Temperature Sensing Circuitry
46
Battery Temperature Sensor
47
Chapter 2 Control Loops in the Online UPS
49
Control Algorithms Discrete Equivalents
49
PFC and Rail Control
50
PFC and Rail Control Loops (Positive Semicycle)
51
Battery Charger Control
53
Battery Charger Control Loop
53
Inverter Control
55
Inverter Control Loop
55
Battery Booster Control Loop
56
Battery Booster Control Loop
57
Minimizing Delay in the Control Loops
58
Chapter 3 Control Board Design Considerations
59
56F8346 Controller
59
56F8346 Controller
60
Reset/Modes/Clock
61
Reset Logic
61
Program and Data Memory
62
Selection Mode and Reset Button
62
Serial Communications
63
Program and Data Memory
63
LCD Interface
64
Peripheral Expansion Connectors
65
Wireless Board Connector
65
PWM Ports Expansion Connectors
65
A/D Ports Expansion Connectors
66
Timer a Expansion Connector
66
PWM Ports Expansion Connectors
66
Gpioport C Expansion Connector (Bits 0-1)
67
Gpioport D Expansion Connector (Bits 10-11)
67
Daughter Card Connector
67
GPIO Port C Expansion Connector
67
GPIO Port D Expansion Connector
67
CAN Interface
68
Daughter Card Connectors
68
Debug Support
69
JTAG Connector
69
CAN Interface
69
Parallel JTAG Interface Connector
70
JTAG Connector
70
Parallel JTAG Interface Connector
71
A/D Filters
72
Power Supply
72
Passive Low-Pass Filters of the A/D Ports
72
Power Input
73
External Power Input
74
Power Supply Leds and Test Points
74
Chapter 4 Operational Description
75
Panel Description
75
UPS Switches and Connectors
75
Operation with EVM or Control Board
76
Jumper Configuration for EVM and Control Board Operation
77
The OUPS with a Control Board Installed
77
Jumper Position for Configuration of the Power Board
78
Functional Components and Location of Jumpers on the Power Board
79
Jumpers on the Control Board
80
Jumper Position for Configuration of the Control Board
80
Operation
81
Installing Batteries
81
Before Applying Power to the UPS
81
Turning the UPS on
82
Turning the UPS off
82
The Right Side of the UPS
83
Chapter 5 Control Software Design Considerations
85
Peripheral and I/O Pins Assignment
85
Assignment of the Analog-To-Digital Converters
85
Digital Outputs and Inputs
85
Main Execution Routine
86
Main Routine Flow Diagram
87
Interrupt Handlers
88
ADC End of Conversion Interrupt Service Routine
88
Flow Diagram for the Interrupt Service Routine Ad1_Onend (1 of 5)
89
Flow Diagram for the Interrupt Service Routine Ad1_Onend (2 of 5)
90
Flow Diagram for the Interrupt Service Routing Ad1_Onend (3 of 5)
91
Flow Diagram for the Interrupt Service Routine Ad1_Onend (4 of 5)
92
Flow Diagram for the Interrupt Service Routine Ad1_Onend (5 of 5)
93
UPS Overcurrent Protection Interrupt Handlers
94
Overcurrent Management
94
Battery Temperature Reading
95
Delay_Timer_Oninterrupt
96
Online UPS Designer Reference Manual, Rev. 0
96
Program Loop Timing
96
Battery Temperature Reading
96
Inverter Control Loop
97
Program Loop Timing
97
PFC Control Loop
98
Inverter Control Loop Diagram
98
Battery Booster Control Loop
99
PFC Control Loop Diagram
99
Battery Charger Control Loop
100
Battery Booster Control Loop
100
Phase Locked Loop Routine
101
Phase Discriminator
101
Synchronous Phase Discriminator State Machine
101
Control Loop
102
Transitions of the Synchronous Phase Discriminator
102
Sine Wave Look-Up Table
103
PLL Control Loop
103
Frequency Measurement Routine
104
Rectifier Soft Start Routine
105
Frequency Measurement Routine
105
Root Mean Square (RMS) Sensing
106
SCR Control Signal Generation at the Beginning and End of the Rectifier
106
Soft Start
106
RMS Sensing System
106
Power Sensing
107
Routine for Measurement of the Battery Stored Charge
107
Power Sensing System
107
General Purpose Digital Filters Used in the Implementation
108
10Hz Low Pass Filter, 2 Stages
108
High-Frequency Noise Rejection Filter
109
Implementation of Low-Pass Filter
109
Flash Memory Access
110
Development Tools Used for Software Implementation
110
Processor Experttm
110
Implementation of the High Frequency Reject Filter
110
Intrinsic 56800E Functions
111
Direct Register Writes
111
Assembly Inlines
111
Chapter 6 Connectivity Software Design Considerations
113
Connectivity Description
113
Peripheral and I/O Pins Assignment
113
Digital Outputs and Inputs Used for Connectivity
113
Implementation
114
LAN91C111 Driver
114
Network Buffers
114
Implementation of Opentcp for OUPS
114
Ethernet Abstraction Layer
115
Opentcp Stack
115
Application Level Processing
115
Connectivity Initialization
115
System Services Initialization
116
Connectivity Initialization
116
System Services Initialization Functions
116
Physical Layer Initialization
117
Network Layers Initialization
117
Application Layer Initialization
117
Physical Layer Initialization Functions
117
Network Layers Initialization Functions
117
Application Layer Initialization Functions
117
Main Application
118
Main Application Diagram
118
Stack Loop
119
Main Loop Diagram
119
Defines Used by Main Connectivity Loop
120
Functions Used by Main Connectivity Loop
120
Interrupt Handlers
121
Interrupts Used by Connectivity Software
121
Chapter 7 Results
123
Inverter Performance
123
Inverter Waveforms under no Load Conditions
123
Inverter Waverforms-No Load
123
Inverter Voltage Harmonics under no Load Conditions
124
Inverter Waveforms under Linear Load Conditions
124
Inverter Voltage Harmonics-No Load
124
Inverter Waveforms-Linear Load
124
Inverter Voltage Harmonics under no Load Conditions
125
Inverter Waveforms under Full Load Conditions-Battery Operated
125
Inverter Voltage Harmonics under Linear Load Conditions
125
Inverter Voltage Harmonics under Full Load Conditions-Battery Operated
126
Inverter Transient Response-60W Cold Bulb
126
Inverter Voltage Harmonics-Full Load, Battery Operated
126
Inverter Transient Response-60W Bulb
126
Inverter Transient Response to a Resistive Load (200W)
127
PFC Performance Measurements
127
Inverter Transient Response-Resistive Load (200W)
127
PFC Performance under Full Load Conditions
128
PFC Performance at 298W Linear Load Conditions
128
PFC Waveforms-Full Load Conditions
128
PFC Waveforms-Linear Load Conditions (298W)
128
PFC Performance at 59W Linear Load Conditions
129
PFC-Transient Response to a Load Step
129
PFC Waveforms-Linear Load Conditions (59W)
129
PFC Performance-Transient
129
Frequence Performance
130
Freerun Frequency Measurement
130
Battery Charger Performance
131
Battery Charger Performance, Current and Voltage Waveforms
131
Battery Charger-Floating Conditions
131
Bypass Switch Performance
132
Inverter Bypass Switch Operation
132
Appendix A Schematics
133
Control Board Schematics
134
Power Board Schematics
147
Appendix B Bill of Materials
165
Specifications of Ferromagnetic Materials
173
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