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Primary Examiner: Heyman, John S.
Assistant Examiner: Anagnos, L. N.
Attorney: Craig & Antonelli

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Title: Electronic circuit using field effect transistor with compensation means

Abstract: In order to provide compensation for changes in the ambient temperature and supply voltage for an electronic circuit, such as a pulse generator circuit made up of MOSIC structure, a field effect transistor circuit includes a high value resistor and an enhancement and depletion type MOSFET, connected in parallel. The drain electrodes of the MOSFETs are connected to the power supply through the resistor and are also connected to the gate electrode of a depletion type load MOSFET which is the load transistor for an enhancement type MOSFET. When the compensating circuit is provided in a pulse generator circuit, instability in the oscillating frequency of the pulse generator due to changes in ambient temperature and supply voltage is overcome and the difference in the oscillating periods for the various MOSICs are decreased.

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Inventors: Kawagoe, Hiroto (Kodaira, JA)
Nomiya, Kosei (Tokyo, JA)

Application Number: 453168
Filing Date: 1974-03-20
Publication_date: 1976-08-17
Assignee: Hitachi, Ltd. (JA)
Primary Class(es): 327/543 323/907, 327/513, 327/541, 327/581, 331/108D, 331/111, 331/176
Other Classes:
US Patent Ref:

3571630	Mar, 1971	Widlar	307/304.
3609414	Sep, 1971	Pleshko	307/310.
3673430	Jun, 1972	Donoghue	307/297.
3760199	Sep, 1973	Graeme	307/310.
3792377	Feb, 1974	Fujita et al.	58/23.
3795827	Mar, 1974	Greger	307/205.
3806741	Apr, 1974	Smith	307/304.
3806742	Apr, 1974	Powell	307/297.
3823332	Jul, 1974	Feryszka et al.	307/297.
3825778	Jul, 1974	Ahmed	307/310.
3875430	Apr, 1975	Prak	307/297.

Other Refs: Other References: Lancaster, "Using the New Constant-Current Diodes"; Electronics World (pub.); 10/1967; pp. 30-31, 78.
Baitinger et al., "Constant-Current Source Network", IBM Tech. Discl. Bull.; vol. 13, No. 9; 2/1971; p. 2516.