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1 CASCADED OR COMBINED, DIVERSE CONVERSIONS IN WHICH THE FREQUENCY OR PHASE OR COMBINED CONVERSION IS WITHOUT INTERMEDIATE CONVERSION TO D.C.
2 . (1 indent ) Current and phase (e.g., D.C.-Ph1-Ph2)
3 .. (2 indent ) Phase 1 to phase 2 to D.C.
4 ... (3 indent ) Single phase to polyphase to D.C.
5 ... (3 indent ) With interphase transformer
6 .... (4 indent ) Including plural anode/single cathode device
7 ... (3 indent ) With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type)
8 . (1 indent ) Current and frequency (e.g., f1-f2-D.C.)
9 . (1 indent ) Combined phase and frequency conversion (i.e., Ph1f1-Ph2f2)
10 .. (2 indent ) By semiconductor device converter
11 .. (2 indent ) By electron tube converter
12 .. (2 indent ) By saturable reactor converter
14 . (1 indent ) Cryogenic
15 . (1 indent ) Including D.C.-A.C.-D.C. converter
16 .. (2 indent ) Having transistorized inverter
17 ... (3 indent ) Bridge type
18 ... (3 indent ) Single-ended, self-oscillating type
19 .... (4 indent ) With automatic control of the magnitude of output voltage or current
20 ... (3 indent ) Single-ended, separately-driven type
21.01 .... (4 indent ) With automatic control of the magnitude of output voltage or current
21.02 .... • (5 indent ) For resonant-type converter
21.03 .... • . (6 indent ) Having particular zero-switching control circuit (e.g., for quasi-resonant converter, etc.)
21.04 .... • (5 indent ) For forward-type converter
21.05 .... • . (6 indent ) Having digital logic
21.06 .... • . (6 indent ) Having synchronous rectifier
21.07 .... • . (6 indent ) Having feedback isolation (e.g., optoisolator, transformer coupled, etc.)
21.08 .... • . (6 indent ) Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.)
21.09 .... • . (6 indent ) Having output current feedback
21.1 .... • . (6 indent ) Utilizing pulse-width modulation
21.11 .... • .. (7 indent ) Having particular pulse-width modulation circuit
21.12 .... • (5 indent ) For flyback-type converter
21.13 .... • . (6 indent ) Having digital logic
21.14 .... • . (6 indent ) Having synchronous rectifier
21.15 .... • . (6 indent ) Having feedback isolation (e.g., optoisolator, transformer coupled, etc.)
21.16 .... • . (6 indent ) Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.)
21.17 .... • . (6 indent ) Having output current feedback
21.18 .... • . (6 indent ) Utilizing pulse-width modulation
22 ... (3 indent ) Double-ended (i.e., push-pull), self-oscillating type
23 .... (4 indent ) With automatic control of the magnitude of output voltage or current
24 ... (3 indent ) Double-ended (i.e., push-pull), separately-driven type
25 .... (4 indent ) With automatic control of the magnitude of output voltage or current
26 .... • (5 indent ) Utilizing pulse-width modulation
27 .. (2 indent ) Having thyristor inverter (e.g., SCR, etc.)
28 ... (3 indent ) With automatic control of the magnitude of output voltage or current
29 .. (2 indent ) Having electron-tube inverter
30 ... (3 indent ) Single-ended type
31 ... (3 indent ) Double-ended type (i.e., push-pull)
32 .. (2 indent ) Rotary-commutator-type inverter
33 .. (2 indent ) Vibrator-type inverter
34 . (1 indent ) Including an A.C.-D.C.-A.C. converter
35 .. (2 indent ) For transfer of power via a high voltage D.C. link (i.e., HVDC transmission system)
36 .. (2 indent ) For change of phase (e.g., number of phases)
37 .. (2 indent ) By semiconductor rectifier and inverter
38 .. (2 indent ) By electron tube rectifier and inverter
39 . (1 indent ) With means to introduce or eliminate frequency components
40 .. (2 indent ) In inverter systems
41 ... (3 indent ) By pulse modulation technique (e.g., PWM, PPM, etc.)
42 .... (4 indent ) Including notching
43 ... (3 indent ) By step-wave, amplitude summation technique
44 .. (2 indent ) In rectifier systems
45 ... (3 indent ) Including means for reducing ripples from the output
46 .... (4 indent ) With ripple responsive, automatic control
47 .... (4 indent ) With low pass L or LC filter
48 .... • (5 indent ) For semiconductor rectifier
49 . (1 indent ) With starting arrangement
50 . (1 indent ) Including automatic or integral protection means
51 .. (2 indent ) For high voltage D.C. transmission systems
52 .. (2 indent ) For rectifiers
53 ... (3 indent ) Semiconductor type
54 .... (4 indent ) Thyristor
55 .. (2 indent ) For inverters
56.01 ... (3 indent ) Transistor inverter
56.02 .... (4 indent ) Bridge type
56.03 .... • (5 indent ) Having current protection (e.g., over current, short, etc.)
56.04 .... • . (6 indent ) Including short protection across a series-connected pair of transistors (e.g., shoot-through protection, etc.)
56.05 .... • (5 indent ) Having voltage protection
56.06 .... (4 indent ) Double-ended type
56.07 .... • (5 indent ) Having current protection
56.08 .... • (5 indent ) Having voltage protection
56.09 .... (4 indent ) Single-ended type
56.1 .... • (5 indent ) Having current protection
56.11 .... • (5 indent ) Having voltage protection
56.12 .... (4 indent ) Transient protection (e.g., snubber, etc.)
57 ... (3 indent ) Thyristor inverter
58 .... (4 indent ) Bridge type
59 . (1 indent ) With voltage multiplication means (i.e., V out > V in)
60 .. (2 indent ) Including semiconductor means
61 ... (3 indent ) For rectifying
62 . (1 indent ) With voltage division by storage type impedance (i.e., V out)
63 . (1 indent ) With means to selectively provide D.C. of either polarity
64 . (1 indent ) With interphase transformer
65 . (1 indent ) Having plural converters for single conversion
66 .. (2 indent ) Including plural anodes and single cathode (e.g., vapor arc device)
67 .. (2 indent ) Plural rectifiers
68 ... (3 indent ) In series (e.g., series SCR's, bridge circuits, etc.)
69 ... (3 indent ) In parallel
70 .... (4 indent ) Including semiconductor device
71 .. (2 indent ) Plural inverters
72 ... (3 indent ) Master-slave
73 . (1 indent ) Constant current to constant voltage or vice versa
74 . (1 indent ) With condition responsive means to control the output voltage or current
75 .. (2 indent ) Including inductive integral sensing and control means (e.g., ferroresonant circuit)
76 .. (2 indent ) Including integral sensing and control means for rectifier
77 ... (3 indent ) With semiconductor conversion means
78 .. (2 indent ) Cooperating separate sensing and control means
79 ... (3 indent ) Including plural sensing or control means
80 .... (4 indent ) With transistor as control means in the line circuit
81 .... (4 indent ) By rectifier
82 .... • (5 indent ) With inductive control means in the line circuit
83 .... • (5 indent ) With electron tube or valve as control means in the line circuit
84 ... (3 indent ) For rectifier system
85 .... (4 indent ) With thyristor control means in the line circuit
86 .... • (5 indent ) External to rectifier (e.g., pre or post regulation)
87 .... • (5 indent ) For plural phase to D.C. rectifier
88 .... • (5 indent ) For full wave rectifier with at least 1 three electrode device
89 .... (4 indent ) With transistor control means in the line circuit
90 .... (4 indent ) With inductive control means in the line circuit
91 .... • (5 indent ) Saturable reactor (e.g., magnetic amplifier)
92 .... • . (6 indent ) In plural phase to D.C. system
93 .... • . (6 indent ) With plural control windings
94 .... (4 indent ) With electron tube or valve control means in the line circuit
95 ... (3 indent ) For inverter
96 .... (4 indent ) With thyristor control means in the line circuit
97 .... (4 indent ) With transistor control means in the line circuit
98 .... • (5 indent ) For bridge-type inverter
99 .... (4 indent ) With electron tube or valve control means in the line circuit
100 . (1 indent ) With manual control of the output voltage or current
101 . (1 indent ) With auxiliary bucking or boosting EMF
102 . (1 indent ) Using dynamoelectric machine converter
103 .. (2 indent ) Plural collector type
104 ... (3 indent ) Having plural field windings
105 ... (3 indent ) Having auxiliary motor drive
106 . (1 indent ) By circuit interrupter type
107 .. (2 indent ) Rotating
108 ... (3 indent ) Rectifier (i.e., A.C.-D.C.)
109 ... (3 indent ) Inverter (i.e., D.C.-A.C.)
110 .. (2 indent ) Vibrating
111 . (1 indent ) Using electronic tube converter
112 .. (2 indent ) With gap in open atmosphere
113 .. (2 indent ) With cathode element control
114 .. (2 indent ) In rectifier systems
115 ... (3 indent ) With retarding or delaying control means
116 ... (3 indent ) With discharge control means (e.g., grid)
117 .... (4 indent ) D.C. bias control
118 .... (4 indent ) Phase angle control
119 .... (4 indent ) Particular waveform grid excitation
120 .. (2 indent ) In inverter systems
121 ... (3 indent ) With discharge control means (e.g., grid)
122 .... (4 indent ) Grid-like electrode
123 . (1 indent ) Using semiconductor-type converter
124 .. (2 indent ) In chopper converter systems
125 .. (2 indent ) In rectifier systems
126 ... (3 indent ) Diode
127 ... (3 indent ) Transistor
128 ... (3 indent ) Thyristor
129 .... (4 indent ) Plural phase to D.C.
130 .... (4 indent ) With magnetic control means
131 .. (2 indent ) In transistor inverter systems
132 ... (3 indent ) Bridge type
133 ... (3 indent ) Double ended (i.e., push-pull) type
134 .... (4 indent ) Separately driven
135 .. (2 indent ) In thyristor inverter systems
136 ... (3 indent ) Bridge type
137 .... (4 indent ) D.C. to plural phase
138 .... • (5 indent ) With commutation means
139 ... (3 indent ) Double ended (i.e., push-pull) type
140 . (1 indent ) Using impedance-type converter
141 . (1 indent ) With cooling means
142 . (1 indent ) With means to connect the input to diverse power sources
143 .. (2 indent ) 110/220 Volts A.C. in, constant 110 Volts D.C. out
144 . (1 indent ) With conductive support mounting
145 .. (2 indent ) Adapted for use with alternators
146 . (1 indent ) Encased in plug housing
147 . (1 indent ) Integrated circuit
148 PHASE CONVERSION (PH1-PH2) WITHOUT INTERMEDIATE CONVERSION TO D.C.
149 . (1 indent ) With automatic voltage magnitude or phase angle control
150 . (1 indent ) By dynamoelectric machine converter
151 . (1 indent ) By electron tube converter
152 . (1 indent ) By induction-type converter
153 .. (2 indent ) Transformer type
154 ... (3 indent ) Stationary
155 .... (4 indent ) With passive phase shift element
156 . (1 indent ) By passive phase shift elements
157 FREQUENCY CONVERSION (F1-F2) WITHOUT INTERMEDIATE CONVERSION TO D.C.
158 . (1 indent ) By varactor
159 . (1 indent ) By semiconductor converter
160 .. (2 indent ) Thyristor type
161 ... (3 indent ) Positive and negative groups
162 .... (4 indent ) Including blanking or inhibiting means
163 .. (2 indent ) Transistor type
164 . (1 indent ) With automatic voltage magnitude control
165 . (1 indent ) With automatic frequency control
166 . (1 indent ) By electron tube converter
167 .. (2 indent ) With discharge control means
168 ... (3 indent ) Including plural anodes and single cathode device (e.g., vapor arc device)
169 ... (3 indent ) Thyratron type
170 . (1 indent ) By induction-type converter
171 .. (2 indent ) Transformer
172 ... (3 indent ) Saturable core
173 .. (2 indent ) LC circuit
174 .. (2 indent ) Dynamoelectric machine
175 ... (3 indent ) Motor generator type
176 ... (3 indent ) Including induction motor
177 . (1 indent ) By circuit interrupter converter
FOR000 CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
.. (2 indent ) Including D.C.- A.C.- D.C. converter
... (3 indent ) Bridge type
FOR100 .... (4 indent ) With automatic control of the magnitude of the output voltage or current (363/21)
FOR101 ... (3 indent ) Semiconductor type (363/56)
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