Inverter Specifications
A–6
976-0043-01-02
Theory of Operation
The
Sine Wave Plus
employs a patented inverter design. This design uses
a combination of three transformers, each with its own low frequency
switches, coupled in series and driven by separate interconnected micro-
controllers. In essence, it is three inverters linked together by their
transformers.
Sine Wave Plus
Waveform
By mixing the outputs from the different transformers, a sine wave is
produced. This waveform is shown in
Figure A-2, “Sine Wave Plus
Inverter Output Waveform” on page A–7
. Notice the “steps” form a
staircase that is shaped like a sine wave. The total harmonic distortion in
this sine wave approach is typically 3-5%. The multi-stepped output is
formed by modulation of the voltage through mixing of the transformers
in a specific order. Anywhere from 34-52 “steps” per AC cycle are
present in the waveform. The heavier the load or lower DC input voltage
the more steps there are in the waveform.
This type of inverter solves many of the problems associated with high
frequency or ferroresonant sine wave inverters. The low frequency
method described has excellent surge ability, high efficiency (typically 85
to 95%), good voltage and frequency regulation, and low total harmonic
distortion.
Figure A-1
Sine Wave Plus
Simple Block Diagram
Batteries
Low Frequency
H-Bridge
Low Frequency
H-Bridge
Low Frequency
H-Bridge
Transformer
Transformer
Transformer
AC Loads
Micro-controllers
Bridges are “mixed” by
Micro-controllers
controlling the H-Bridges
Sine Wave Plus Inverter Charger
Содержание SW Plus 2524
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Страница 3: ...Sine Wave Plus Inverter Charger Owner s Manual...
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Страница 101: ...DC Wiring 976 0043 01 02 3 19 Figure 3 9 BTS RJ11 Port Location and Installation BTS RJ11 Port DC End of the Inverter...
Страница 105: ...DC Wiring 976 0043 01 02 3 23 Figure 3 13 DC Connections to a Single Inverter...
Страница 107: ...DC Wiring 976 0043 01 02 3 25 Figure 3 14 DC Connections to Dual Inverters...
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Страница 127: ...4 Functional Test Chapter 4 Functional Test explains how to conduct a functional test of the inverter...
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Страница 141: ...Menu Map 976 0043 01 02 5 9 Figure 5 10 User Menu Map Part 2...
Страница 143: ...Menu Map 976 0043 01 02 5 11 Figure 5 12 Basic Setup Menu Map Part 2...
Страница 145: ...Menu Map 976 0043 01 02 5 13 Figure 5 14 Advanced Setup Menu Map Part 2...
Страница 146: ...Navigation 5 14 976 0043 01 02 Figure 5 15 Complete User Menu Map...
Страница 147: ...Menu Map 976 0043 01 02 5 15 Figure 5 16 Complete Basic Setup Menu Map...
Страница 148: ...Navigation 5 16 976 0043 01 02 Figure 5 17 Complete Advanced Setup Menu Map...
Страница 200: ...Advanced Setup 7 22 976 0043 01 02 Figure 7 3 Relay 11 Wiring Example to Dual Inverters with Cooldown selected...
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Страница 342: ...Index IX 4 976 0043 01 02...
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