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公开(公告)号：US3629691A
公开(公告)日：1971-12-21
申请号：US3629691D
申请日：1970-07-13
Applicant: RCA CORP
Inventor： WHEATLEY CARL FRANKLIN JR
CPC classification number: G05F3/265
Abstract: A semiconductor current source adapted for integrated circuit fabrication. A first transistor and a second diode-connected transistor have their base-emitter circuits coupled in parallel. A current-determining resistor is connected between the emitters of the transistors. The effective base-emitter junction area of the diode-connected transistor is greater than that of the first transistor. The collectors of the first and second transistors are coupled to feedback circuitry which tends to maintain their collector currents substantially equal despite the difference in device areas. A difference in base-emitter voltage of the two transistors appears across the emitter resistor and determines the operating current level.
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公开(公告)号：US3671782A
公开(公告)日：1972-06-20
申请号：US3671782D
申请日：1970-12-01
Applicant: RCA CORP
CPC classification number: G11C27/00 , G11C27/026
Abstract: A sample and hold circuit using a first and second operational transconductance amplifier with a voltage storing device connected in circuit between the first and second amplifiers. A sample of the amplitude level of an input signal is stored in the storage device at predetermined times when the first amplifier is rendered operative. The sampled level is provided at the circuit output terminal at other predetermined times when the second amplifier is rendered operative.
Abstract translation: 一种使用第一和第二操作跨导放大器的采样和保持电路，其中电压存储装置连接在第一和第二放大器之间的电路中。 当第一放大器可操作时，输入信号的幅度电平的采样在预定时间存储在存储装置中。 当第二放大器可操作时，在其它预定时间在电路输出端提供采样电平。
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Patent Agency Ranking
公开(公告)号：US3614645A
公开(公告)日：1971-10-19
申请号：US3614645D
申请日：1969-08-06
Applicant: RCA CORP
Inventor： WHEATLEY CARL FRANKLIN JR
CPC classification number: H03G1/0023 , H03F3/347 , H03F3/45089 , H03F3/45479
Abstract: A differential amplifier comprising a pair of transistors of one conductivity type has an active load circuit comprising a second pair of transistors of the opposite conductivity type, one connected in series with each transistor of the first pair. A third pair of transistors of the opposite conductivity type have their emitter electrodes connected in common to the base electrodes of the second pair, and their base electrodes individually connected to the collector electrodes of the second pair. The active load varies its conductivity as a function of common mode currents while developing a substantially constant voltage drop. Differential signal currents develop significant voltage drops which are simultaneously coupled by the third pair of transistors to an output load circuit.
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公开(公告)号：US3688153A
公开(公告)日：1972-08-29
申请号：US3688153D
申请日：1970-04-02
Applicant: RCA CORP
Inventor： WHEATLEY CARL FRANKLIN JR
CPC classification number: H03K4/62
Abstract: A unidirectional conductive device is coupled from a base terminal to a collector terminal of a horizontal deflection output transistor in a television receiver and poled in a direction to prevent the transistor from saturating when it is driven into its conductive state during a portion of each deflection cycle. Biasing means is coupled to the diode to preselect the desired operating voltage of the transistor during its conduction period.
Abstract translation: 单向导电装置从电视接收机的水平偏转输出晶体管的基极端子到集电极端子耦合，并且在每个偏转周期的一部分期间当其被驱动到其导通状态时防止晶体管饱和的方向极化 。 偏置装置耦合到二极管以在其导通周期期间预选晶体管的期望工作电压。
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5.发明授权Method for making transistors including base sheet resistivity determining step 失效制造晶圆的方法，包括基片电阻测定步骤
公开(公告)号：US3676229A
公开(公告)日：1972-07-11
申请号：US3676229D
申请日：1971-01-26
Applicant: RCA CORP
CPC classification number: H01L22/14 , G01R31/2637 , G01R31/2644 , H01L22/00 , H01L22/20 , H01L29/1004 , Y10S148/085 , Y10S148/162
Abstract: A SEMICONDUCTOR WAFER HAS A UNIFORMLY THICK COLLECTOR LAYER THEREIN WITH A UNIFORMLY THICK BASE LAYER ADJACENT THE COLLECTOR LAYER. A PLURALITY OF EMITTER REGIONS ARE DIFFUSED INTO THE BASE LAYER FROM THE SURFACE. DURING EMITTER DIFFUSION, AN ANNULAR REGION OF THE SAME CONDUCTIVITY AS THE EMITTER REGIONS IS ALSO DIFFUSED INTO THE BASE LAYER TO SURROUND A PORTION OF THE BASE LAYER AT THE SURFACE. THE SHEET RESISTIVITY OF THE BASE LAYER BETWEEN THE ANNULAR REGION AND THE COLLECTOR LAYER IS DETERMINED, AND IF BELOW A DESIRED MINMUM, THE EMITTER AND ANNULAR REGIONS ARE FURTHER DIFFUSED.
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公开(公告)号：US3611170A
公开(公告)日：1971-10-05
申请号：US3611170D
申请日：1969-10-27
Applicant: RCA CORP
Inventor： WHEATLEY CARL FRANKLIN JR
CPC classification number: H03F3/45479 , H03F1/3217 , H03F3/3066
Abstract: A means for baising a complementary Class B transistor amplifier which has the capability of maintaining the amplifier at a minimum distortion operating point over large ambient temperature variations.
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公开(公告)号：US3573645A
公开(公告)日：1971-04-06
申请号：US3573645D
申请日：1969-06-30
Applicant: RCA CORP
Inventor： WHEATLEY CARL FRANKLIN JR
CPC classification number: H03F3/3094 , H03F3/30 , H03F3/347
Abstract: An integrated circuit phase splitter is direct-current coupled to a load circuit. The phase splitter includes a pair of transistors connected respectively in common emitter and base configurations. A signal input circuit is coupled to the emitter electrode of the common base transistor and to the base electrode of the common emitter transistor. Biasing means, including a pair of forward biased diodes, are provided in the base circuit of the common base transistor for establishing the quiescent current of that transistor as a function of the diode current. Another diode which is connected in series with the common base transistor is also connected between the input electrodes of the common emitter transistor to establish the common emitter transistor current equal to that of the common base transistor.
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