Accession Number:

AD0600044

Title:

PORTABLE BATTERY CHARGERS.

Descriptive Note:

Quarterly process rept. no. 2, 1 Oct-31 Dec 63,

Corporate Author:

AEROSPACE RESEARCH INC BOSTON MASS

Personal Author(s):

• Craven,Robert B.
• moo,Charles A.

Report Date:

1964-01-28

Pagination or Media Count:

144.0

Abstract:

Basic battery charging configurations permitting control of charging power by use of switch modulation methods are presented. Circuits using both transistor and silicon controlled rectifier switch power modulators are described and compared. Pulse-width and pulse frequency modulation methods are examined from the standpoint of suitability for control of charging power. It is conculed that use of pulse-width switch modulation control of charger power results in a smaller required output circuit smoothing choke than is required using the pulse frequency control method. Author

Descriptors:

• *BATTERY CHARGERS
• *MODULATORS
• PORTABLE EQUIPMENT
• POWER
• CONTROL
• CIRCUITS
• TRANSISTORS
• RECTIFIERS
• SILICON
• POWER TRANSFORMERS
• TRIGGER CIRCUITS
• SWITCHING CIRCUITS
• BATTERY COMPONENTS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE