Battery powered motor drive with temperature-responsive battery heater

Patent · Tue May 19 04:00:00 EDT 1987

OSTI ID:6235723

Sweetman, J D

This patent describes a battery powered timing control circuit for driving a stepping motor with current pulses. The circuit has a temperature responsive battery heater and a battery charging circuit and improved means for driving the stepping motor. The method comprises: voltage supply means adapted to rectify an AC voltage signal and produce energizing DC voltage signals; oscillator means adapted to generate periodic pulse signals; frequency dividing means for receiving the periodic pulse signals and producing control signals in response thereto; pulse forming means responsive to the control signals for producing pulsed signals in response thereto; current driving means responsive to pulsed signals for producing current pulse signals; and stepper motor means coupled to receive the current pulse signals and adapted to produce a corresponding stepping action in response thereto.

• Assignee: Paragon Electric Co., Inc., Two Rivers, WI
• Patent Number(s): US 4667140
• OSTI ID: 6235723
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
250904 -- Energy Storage-- Batteries-- Other Applications
AMBIENT TEMPERATURE
BATTERY CHARGERS
BATTERY CHARGING
CONTROL
CURRENTS
DIRECT CURRENT
ELECTRIC BATTERIES
ELECTRIC CURRENTS
ELECTRIC MOTORS
ELECTROCHEMICAL CELLS
ELECTRONIC CIRCUITS
FREQUENCY CONTROL
HEATERS
MOTORS
PULSES
SIGNALS
TEMPERATURE CONTROL
TEMPERATURE EFFECTS
TIMING CIRCUITS
USES