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US4074206A Expired / Lapsed US ⏱️ 0.0 years remaining

Linear output amplifier for charge-coupled devices

Assignee: Siemens AG
•
Filing: 1977-01-14
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Granted: 1978-02-14
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Expires: 1997-01-14
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Abstract

Abstract A linear output amplifier for a charge coupled device arrangement in which the amplifier has a field effect switching transistor serially connected to a load element, the connection point between the transistor and the load element being the output of the amplifier and the gate terminal of the transistor being the input of the amplifier. The input of the amplifier is connected to the charge coupled device arrangement by either connecting it to the output diffusion zone of the same or by connecting it to a control electrode of the charge coupled device arrangement. Between the output of the amplifier and the input of the amplifier an additional transistor is provided with the aid of which the input can be connected to the output. Preferably, the load element is a field effect transistor and the load resistance which it provides can be varied by connecting a voltage source of desired amplitude to the gate terminal thereof.

Inventors

  • 👤 Karlheinrich Horninger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:25
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C19/00; G11C19/28; G11C19/282; G11C19/285; G11C27/00; G11C27/04; H03F; H03F1/00; H03F1/30; H03F1/303; H03F1/32; H03F1/3217

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 173 words
A linear output amplifier for a CCD arrangement comprising an FET switching transistor and a load element, connected in series to one another, the connection point being the output terminal of said amplifier, the gate terminal of said switching transistor being the input of the amplifier, said input of said amplifier being connected to said CCD arrangement, and between the output and the input of said amplifier is provided a second FET, by which the input to said amplifier can be electrically connected to the output of said amplifier, said load element being a third field effect transistor whose load resistance can be varied by connecting a voltage to the gate terminal thereof, wherein in order to prevent input-couplings of control pulses of said second transistor, a fourth FET is connected between said second transistor and said input of said amplifier, a fifth FET is connected between the said second transistor and said input of said amplifier, and the gate terminals of said second and fifth transistors being connected to a voltage source.
Claim 2
Dependent Claim 173 words
A linear output amplifier for a CCD arrangement comprising an FET switching transistor and a load element, connected in series to one another, the connection point being the output terminal of said amplifier, the gate terminal of said switching transistor being the input of the amplifier, said input of said amplifier being connected to said CCD arrangement, and between the output and the input of said amplifier is provided a second FET, by which the input to said amplifier can be electrically connected to the output of said amplifier, said load element being a third field effect transistor whose load resistance can be varied by connecting a voltage to the gate terminal thereof, wherein in order to prevent input-couplings of control pulses of said second transistor, a fourth FET is connected between said second transistor and said input of said amplifier, a fifth FET is connected between the said second transistor and said input of said amplifier, and the gate terminals of said second and fifth transistors being connected to a voltage source.
Claim 3
Dependent Claim 20 words
An output amplifier as claimed in claim 1, in which said transistors are transistors of the MOS field effect type.
Claim 4
Dependent Claim 26 words
An output amplifier as claimed in claim 1 in which the input of said amplifier is connected to an output diffusion zone of said CCD arrangement.
Claim 5
Dependent Claim 25 words
An output amplifier as claimed in claim 1, in which the input of said amplifier is connected to a control electrode of said CCD arrangement.

References Cited (Backward Citations)

US3392341A Cited
US3656011A Cited
US3836862A Cited
US3946223A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-02-13 1981-08-15 1982-02-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-02-13 1985-08-15 1986-02-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-02-13 1989-08-15 1990-02-14 $7700.00 Window Closed / Lapsed

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