Patent US4992925A successfully refreshed from Google Patents.
US4992925A
Expired / Lapsed
US
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Converter with intermediate d.c. circuit
Assignee: Heidelberger Druckmaschinen AG
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Filing: 1989-01-27
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Granted: 1991-02-12
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Expires: 2009-01-27
Abstract
Abstract A converter with an intermediate d.c. circuit includes power components grouped together in a plurality of modules. Bus bars are provided to which the modules are connected.
Inventors
- 👤 Helmut Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:49
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/003; H05; H05K; H05K7/00; H05K7/14; H05K7/1422; H05K7/1427; H05K7/1432; H05K7/14329
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
72 words
Converter with an intermediate d.c. circuit, comprising power components grouped together in a plurality of modules having respective printed-circuit boards for control circuits disposed thereon, and bus bars to which said modules are connected, and a mounting plate formed with cutouts, said modules projecting through said cutouts formed in said mounting plate in a manner that said modules are removable from a side of said mounting plate located opposite said bus bars.
Claim 2
Dependent Claim
72 words
Converter with an intermediate d.c. circuit, comprising power components grouped together in a plurality of modules having respective printed-circuit boards for control circuits disposed thereon, and bus bars to which said modules are connected, and a mounting plate formed with cutouts, said modules projecting through said cutouts formed in said mounting plate in a manner that said modules are removable from a side of said mounting plate located opposite said bus bars.
Claim 3
Dependent Claim
44 words
Converter according to claim 1, wherein a plurality of said modules on said side of said mounting plate located opposite said bus bars are formed with heat sinks and have at least one dimension which is greater than a corresponding dimension of said cutouts.
Claim 4
Dependent Claim
31 words
Converter according to claim 2, comprising control circuits provided on a printed-circuit board, said printed-circuit board being disposed substantially parallel to said mounting plate on said side of said bus bars.
Claim 5
Dependent Claim
23 words
Converter according to claim 3, wherein said printed-circuit board is hinged and is connected by flexible lines to a plurality of said modules.
Claim 6
Dependent Claim
18 words
Converter according to claim 1, wherein said modules are mechanically coded so as to be secure against exchange.
Claim 7
Dependent Claim
28 words
Converter according to claim 1, including half-bridge switch modules electrically coded so that circuits driving said half-bridge switch modules are automatically matched to characteristics of said half-bridge switches.
Claim 8
Dependent Claim
20 words
Converter according to claim 1, wherein said modules include a rectifier module, a capacitor module and a half-bridge switch module.
Claim 9
Dependent Claim
10 words
Converter according to claim 8, including another half-bridge switch module.
Claim 10
Dependent Claim
10 words
Converter according to claim 8, including a braking chopper module.
Claim 11
Dependent Claim
21 words
Converter according to claim 7, including a current and voltage-measuring module disposed between said capacitor module and said half-bridge switch module.
Claim 12
Dependent Claim
15 words
Converter according to claim 7, including means for protecting said capacitor module against polarity reversal.
Claim 13
Dependent Claim
22 words
Converter according to claim 8, wherein said printed-circuit board with a driver circuit is provided on each of said half-bridge switch modules.
Claim 14
Dependent Claim
21 words
Converter according to claim 12, wherein said printed-circuit board with a driver chopper is also provided on said braking chopper module.
Claim 15
Dependent Claim
15 words
Converter according to claim 7, wherein each of said capacitor modules has a monitoring apparatus.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |