Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
An electronic circuit comprising an amplifier circuit including: input and output terminals; a power voltage terminal; a ground terminal; at least one insulated gate field effect transistor as an amplifying element, said field effect transistor having its gate, drain and source connected to said input, output and ground terminals respectively; a bias resistor provided between said input and output terminals; and first and second capacitive elements series-connected between said power voltage terminal and said ground terminal, a divided voltage of a power voltage determined by said first and second capacitive elements being selected to be equal to a bias voltage determined by said bias resistor, said divided voltage being applied to said input terminal.
Claim 2
Dependent Claim
114 words
An electronic circuit comprising an amplifier circuit including: input and output terminals; a power voltage terminal; a ground terminal; at least one insulated gate field effect transistor as an amplifying element, said field effect transistor having its gate, drain and source connected to said input, output and ground terminals respectively; a bias resistor provided between said input and output terminals; and first and second capacitive elements series-connected between said power voltage terminal and said ground terminal, a divided voltage of a power voltage determined by said first and second capacitive elements being selected to be equal to a bias voltage determined by said bias resistor, said divided voltage being applied to said input terminal.
Claim 3
Dependent Claim
200 words
An electronic circuit comprising an oscillation circuit including: an amplifier circuit having at least one insulated gate field effect transistor as an amplifying element, input and output terminals, and a bias resistor provided between said input and output terminals, said field effect transistor having its gate connected to said input terminal, its drain connected to said output terminal and its source grounded; positive feedback means for coupling an output signal of said amplifier to the input side thereof, said positive feedback means having an inductive element connected between said input and output terminals, a first capacitive element one end of which is connected to said input terminal and the other end of which is grounded, and a second capacitive element one end of which is connected to said output terminal and the other end of which is grounded; and a third capacitive element connected between a power voltage terminal and said input terminal for dividing a power voltage in cooperation with said first capacitive element, a divided voltage of said power voltage determined by a ratio between the capacitances of said first and third capacitive elements being selected to be equal to a bias voltage determined by said bias resistor.
Claim 4
Dependent Claim
200 words
An electronic circuit comprising an oscillation circuit including: an amplifier circuit having at least one insulated gate field effect transistor as an amplifying element, input and output terminals, and a bias resistor provided between said input and output terminals, said field effect transistor having its gate connected to said input terminal, its drain connected to said output terminal and its source grounded; positive feedback means for coupling an output signal of said amplifier to the input side thereof, said positive feedback means having an inductive element connected between said input and output terminals, a first capacitive element one end of which is connected to said input terminal and the other end of which is grounded, and a second capacitive element one end of which is connected to said output terminal and the other end of which is grounded; and a third capacitive element connected between a power voltage terminal and said input terminal for dividing a power voltage in cooperation with said first capacitive element, a divided voltage of said power voltage determined by a ratio between the capacitances of said first and third capacitive elements being selected to be equal to a bias voltage determined by said bias resistor.
Claim 5
Dependent Claim
62 words
The electronic circuit according to claim 2, wherein the capacitance of said third capacitive element is defined in a manner that the total capacitance of said first and third capacitive elements is equal to a predetermined capacitance of a capacitive element to be provided at said input side of said amplifier circuit to obtain a predetermined oscillating frequency in said oscillation circuit.
Claim 6
Dependent Claim
36 words
The electronic circuit according to claim 2, wherein the capacitance of said third capacitive element is defined so as to obtain a predetermined oscillating frequency in said oscillation circuit in cooperation with said first capacitive element.