Electric power conversion systems

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SECTION I - CLASS DEFINITION

This is a restricted class for conversion systems wherein a single electrical source circuit is coupled to a single electrical load circuit.

A. LOAD IN OUTPUT CIRCUIT

1. Load Defined By Its Characteristics:

This class provides for conversion systems as defined the Glossary, below, even though the electrical load in the output circuit is recited by its characteristics, e.g., an inductive load, a load having negative current resistance characteristic, etc.

2. Particular Load Device:

Systems wherein a particular load device is recited in the output circuit are classified with the particular art even though the load device is recited by name only, e.g., a motor, an electrical furnace, etc. A partial list of such art systems is set forth under References to Other Classes, below.

3. What This Class Does Not Provide For:

This class does not provide for systems having a plurality of load devices whether the load devices are in different output circuits or in the same output circuit, except where the plural load device in a single output circuit are similar type loads. Therefore, if there are a plurality of diverse load devices in a single output circuit, even though recited only by their characteristics, e.g., a high inductive load and a low inductive load, then the system is excluded from this class.



 
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Subclass
Title
17
Bridge type
674 Patents
98
For bridge-type inverter
936 Patents
132
Bridge type
996 Patents
1
CASCADED OR COMBINED, DIVERSE CONVERSIONS IN WHICH THE FREQUENCY OR PHASE OR COMBINED CONVERSION IS WITHOUT INTERMEDIATE CONVERSION TO D.C.
6 Patents
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2
Current and phase (e.g., D.C.-Ph1-Ph2)
13 Patents
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3
Phase 1 to phase 2 to D.C.
11 Patents
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4
Single phase to polyphase to D.C.
9 Patents
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5
With interphase transformer
15 Patents
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6
Including plural anode/single cathode device
0 Patents
7
With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type)
0 Patents
8
Current and frequency (e.g., f1-f2-D.C.)
47 Patents
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9
Combined phase and frequency conversion (i.e., Ph1f1-Ph2f2)
8 Patents
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10
By semiconductor device converter
31 Patents
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11
By electron tube converter
0 Patents
12
By saturable reactor converter
4 Patents
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13
CURRENT CONVERSION
28 Patents
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14
Cryogenic
33 Patents
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15
Including D.C.-A.C.-D.C. converter
119 Patents
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18
Single-ended, self-oscillating type
68 Patents
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19
With automatic control of the magnitude of output voltage or current
265 Patents
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20
Single-ended, separately-driven type
300 Patents
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21.01
With automatic control of the magnitude of output voltage or current
139 Patents
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