Charging generator

• US 5,059,886 A
• Filed: 06/04/1990
• Issued: 10/22/1991
• Est. Priority Date: 06/05/1989
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Kaneyuki, Kazutoshi, Nishimura, Shinji
• Primary Examiner(s): Stephan, Steven L.
• Assistant Examiner(s): Dougherty, Thomas M.
• Application Number:
  US07/532,730
• Time in Patent Office: 505 Days
• Field of Search: 322/28, 322/21, 320/64
• US Class Current: 322/28
• CPC Class Codes: H02J 7/1469 Regulation of the charging current or voltage otherwise than by variation of field

Abstract

A charging generator charges a battery by a voltage output from a generating unit having an armature coil and a field coil. The generator comprises a voltage boost/drop circuit connected between the output of the generator unit and the battery; a first control circuit connected between the field coil of the generating unit and the battery for controlling a field current flowing through the field coil to regulate a voltage generated in the armature coil of the generating unit in response to a voltage across the battery; and a second control circuit connected to the voltage boost/drop circuit for controlling the boost/drop ratio of the voltage boost/drop circuit.

Claims

1. A charging generator for charging a battery by a voltage output from a generating unit having an armature coil and a field coil comprising:

voltage boost/drop circuit means connected between the output of said generating unit and said battery;

first control circuit means connected between the field coil of said generating unit and said battery for controlling a field current flowing through the field coil to regulate a voltage generated in the armature coil of said generating unit in response to a voltage across said battery; and

second control circuit means connected to said voltage boost/drop circuit means for controlling the boost/drop ratio of said voltage boost/drop circuit means.