Battery charging systems for road vehicles

Patent · Tue Jun 10 04:00:00 EDT 1980

OSTI ID:5775760

Taylor, J D

A road vehicle battery charging system for a dual voltage electrical supply includes a conventional alternator/rectifier assembly for charging a main battery and a dc to dc converter for charging an auxiliary battery in series with the main battery. The converter includes two transistors connected with a feedback transformer to form an oscillator to drive an output transformer. The oscillator includes two diodes which need to be connected to one terminal of the main battery to allow the oscillator to run and a switching transistor is interposed in such connection and has its conduction controlled in accordance with the alternator output so as to inhibit the dc to dc converter when the alternator output is below a predetermined level.

• Assignee: Lucas Industries Ltd (United Kingdom)
• Patent Number(s): US 4207512
• OSTI ID: 5775760
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALTERNATORS
BATTERY CHARGERS
BATTERY CHARGING
DC TO DC CONVERTERS
DESIGN
ELECTRIC BATTERIES
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
EQUIPMENT
RECTIFIERS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
TRANSFORMERS
TRANSISTORS
VEHICLES