Electronic circuit using field effect transistor with compensati

Details Electronic circuit using field effect transistor with compensati Electronic circuit using field effect transistor with compensati

1974-03-20

1976-08-17

Heyman, John S.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307205, 307214, 307297, 307310, H03K 3353, H03K 1714, H03K 1908, H03K 1940

Patent

active

039756491

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.

REFERENCES:
patent: 3571630 (1971-03-01), Widlar
patent: 3609414 (1971-09-01), Pleshko
patent: 3673430 (1972-06-01), Donoghue
patent: 3760199 (1973-09-01), Graeme
patent: 3792377 (1974-02-01), Fujita et al.
patent: 3795827 (1974-03-01), Greger
patent: 3806741 (1974-04-01), Smith
patent: 3806742 (1974-04-01), Powell
patent: 3823332 (1974-07-01), Feryszka et al.
patent: 3825778 (1974-07-01), Ahmed
patent: 3875430 (1975-04-01), Prak
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.

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