Title:
SENSOR STABILIZING DEVICE
Document Type and Number:
Japanese Patent JPS63220309
Kind Code:
A
Abstract:
PURPOSE:To stably supply heater voltage for a sensor and to stably extract a signal from the sensor by providing the titled device with a dummy load device having the same load as that of a real load device to control a load value always at the same value. CONSTITUTION:Since the dummy load device 3d corresponding to the real load device 3b is used, a signal is sent from a part (b) in a control circuit part 3f to a transistor (TR) 3e to drive the dummy load device 3d when the real load device 3b is stopped, and when the device 3b is operating, a signal is sent to stop the device 3d, so that power is consumed always at the same load in a part B on the secondary side of a power supply transformer 2. Since the part B on the secondary side of the transformer 2 is not varied against the part A on the secondary side of the transformer 2, i.e. a part supplying heater voltage to the sensor 1, a stable voltage can be supplied.
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Inventors:
ASAHI TAKAHIRO
Application Number:
JP5456887A
Publication Date:
September 13, 1988
Filing Date:
March 10, 1987
Export Citation:
Assignee:
MATSUSHITA SEIKO KK
International Classes:
G05F1/10; (IPC1-7): G05F1/10
Attorney, Agent or Firm:
Toshio Nakao