Buck-boost converter with dual-mode control for battery charging

Patent · Tue Aug 20 04:00:00 EDT 1985

OSTI ID:6049083

Ray, R C

A voltage controlled flyback converter used as a battery charging circuit avoids the power dissipation of the more conventional series-type regulator-type charging circuits but cannot be readily utilized because of the high gain in the feedback loop due to the battery voltage, which causes instabilities therein when it is operated in a continuous current mode. These instabilities are avoided in a flyback converter used for battery charging by using current control techniques to control current on the primary side of the converter during high-rate battery charging. During low-rate charging, normal voltage feedback from an output current sensing resistor is used as long as the converter operates in a discontinuous mode.

• Assignee: AT and T Bell Laboratories
• Patent Number(s): US 4536696
• OSTI ID: 6049083
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
BATTERY CHARGERS
BATTERY CHARGING
DESIGN
ELECTRIC CHARGES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
OPERATION
POWER CONDITIONING CIRCUITS
RECTIFIERS
RELAYS
RESISTORS
TRANSFORMERS
VOLTAGE REGULATORS