US4940928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging generator apparatus
Assignee: Mitsubishi Electric Corp
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Filing: 1989-07-31
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Granted: 1990-07-10
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Expires: 2009-07-31
Abstract
Abstract A charging generator 1 has armature windings 101 and a field winding 102, a voltage reducing circuit 5 for reducing the output voltage of the generator, a battery 4 to be charged by the output voltage of the voltage reducing circuit, a voltage regulator 31 for regulating the output of the generator by controlling a field current supplied to the field winding, and a control circuit 6 for controlling a voltage reducing ratio in the voltage reducing circuit.
Inventors
- 👤 Shinji Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:08
CPC Classifications
H; H02; H02P; H02P21/00; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
76 words
A charging generator apparatus which comprises a generator having armature windings and a field winding, a voltage reducing circuit for reducing the output voltage of said generator, a battery to be charged by the output voltage of said voltage reducing circuit, a voltage regulator for regulating the output of said generator by controlling a field current supplied to said field winding and a control circuit for controlling a voltage reducing ratio in said voltage reducing circuit.
Claim 2
Dependent Claim
76 words
A charging generator apparatus which comprises a generator having armature windings and a field winding, a voltage reducing circuit for reducing the output voltage of said generator, a battery to be charged by the output voltage of said voltage reducing circuit, a voltage regulator for regulating the output of said generator by controlling a field current supplied to said field winding and a control circuit for controlling a voltage reducing ratio in said voltage reducing circuit.
Claim 3
Dependent Claim
27 words
The charging generator apparatus according to claim 1, wherein said control circuit detects when the output voltage of said battery is at a predetermined level or lower.
Claim 4
Dependent Claim
71 words
The charging generator apparatus according to claim 2, wherein said voltage reducing circuit comprises a switching element turned on by the output of said control circuit, a reactor connected between said switching element and said battery, and a diode connected to the a function point between said switching element and said reactor so that the output of said generator is supplied to said battery through said switching element and said reactor.
Claim 5
Dependent Claim
43 words
The charging generator apparatus according to claim 1, wherein said voltage regulator maintains the output of said generator at a predetermined level by feeding a current to said field winding when the output of said generator is at a predetermined value or lower.
References Cited (Backward Citations)
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Cited
JPS59169337A
Cited
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Cited
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Cited
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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) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |