Document Type and Number:
Japanese Patent JPH0461522
Kind Code:
B2
Abstract:
A temperature compensating circuit for a piezoelectric crystal includes a thermistor circuit coupled to a transistor to cause the output voltage derived from the transistor to decrease as the temperature increases from a cold temperature toward a middle temperature. As the temperature increases still more, the thermistor causes the transistor to become saturated, and its output voltage increases. An additional thermistor circuit is coupled to the transistor output to cause the output voltage to decrease as the temperature increases toward a warm temperature from the temperature at which the transistor became saturated.
Inventors:
JOHANESU JAKOBASU UANDAGURAAFU
Application Number:
JP19782182A
Publication Date:
October 01, 1992
Filing Date:
November 12, 1982
Export Citation:
Assignee:
ERIKUSON JII II MOOBIRU KOMYUNIKEESHONZU INC
International Classes:
H03B5/32; H03B5/04; H03L1/02