Patent
Resonant circuit using variable capacitance diode
Reads0
Chats0
TLDR
In this paper, a resonance circuit has an inductor, a capacitor and a semiconductor with a junction, and the means for applying a signal to the semiconductor junction satisfies the equation:Abstract:
A resonance circuit having an inductor, a capacitor and a semiconductor with a junction, and means for applying a signal to the semiconductor junction. The semiconductor junction satisfies the equation: ##EQU1## where C represents the capacitance of the semiconductor junction when a voltage V is applied thereto and the junction of the semiconductor is reverse biased, C' is a constant, and the inductor and capacitor are connected in series.read more
Citations
More filters
Patent
Gate-enhanced junction varactor
TL;DR: In this article, a semiconductor junction varactor utilizes gate enhancement for enabling the varactor to achieve a high ratio of maximum capacitance to minimum capacitance, where the gate enhancement is applied to achieve the desired ratio.
Patent
Gate-enhanced junction varactor with gradual capacitance variation
TL;DR: In this article, a semiconductor junction varactor utilizes gate enhancement for enabling the varactor to achieve a high ratio of maximum capacitance to minimum capacitance, where the gate region is divided into multiple portions of differing zero-point threshold voltages.
Patent
Electronically tunable capacitor
Krishna Shenai,Malay Trivedi +1 more
TL;DR: In this article, a tunable capacitor is defined as a MOSFET with a first capacitor formed from semiconductor material and having a first terminal defining an anode and a second terminal defining a cathode.
Patent
Variable capacitance diode element having wide capacitance variation range
TL;DR: In this article, a variable-capacitance diode element is constructed, which comprises a semiconductor substrate of a first conductivity type having an epitaxial layer of the first conductivities provided on a main surface portion thereof.
Patent
Voltage controlled component including a capacitive diode biased to operate in the linear region
TL;DR: In this paper, a biased electronic circuit is defined, in which a voltage-controlled component has a characteristic with a non-linear portion and a substantially linear portion, and the circuit is biased by a voltage being applied to one terminal of the component thereby shifting the operation of the components to the linear portion.
References
More filters
Patent
Variable capacitance semiconductor devices
TL;DR: In this paper, a body of semiconductor material of one conductivity type, a film of conductive material insulatingly overlying a surface adjacent region of the body to provide a first electrode of the device, and a second electrode in contact with another region of body is provided.
Patent
Surface barrier diode having a hypersensitive {72 {30 {0 region forming a hypersensitive voltage variable capacitor
TL;DR: In this article, the surface barrier diode (Schottky diode) was proposed to have a hypersensitive voltage variable capacitance effect where the capacitance is approximately inversely proportional to the first power of the applied voltage.
Patent
Local oscillator for television tuner having reduced oscillation voltage variation between high and low frequency bands
TL;DR: In this paper, the bias control means comprises a switching diode connected between ground and dividing point of high and low frequency band coils of the oscillator circuit, and a negative voltage source is connected through a high resistance to an end of the low band coil.
Patent
Local oscillator for use in a vhf tuner for a television receiver
TL;DR: In this paper, a local oscillator for a VHF tuner employing variable capacitance diodes is described, in which a high band tuning coil is tapped at a suitable point and an AFC circuit is connected to this point so as to eliminate variations of the AFC sensitivity depending on the high and low bands.