| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | High voltage circuits in low voltage CMOS process | US376903 | 1982-05-10 | US4490629A | 1984-12-25 | Allen R. Barlow; Corey Petersen |
| A CMOS push-pull output buffer (171) is constructed utilizing a plurality of N channel transistors (74, 75, 76) and a plurality of P channel transistors (71, 72, 73) connected in series. The voltages applied to the gates of the N channel transistors and P channel transistors are selected to divide the high voltage (+V) substantially equally across the P channel transistors, when the P channel transistors are turned off, and substantially evenly divide the high voltage across the N channel transistors, when the N channel transistors are turned off.In another embodiment of this invention, selected ones of the N channel and P channel transistors are formed in order to have a high drain to bulk breakdown voltage.In another embodiment of this invention, a plurality of N channel and a plurality of P channel transistors are connected in series and driven by a single ended control voltage (C.sub.N), thus providing a first stage (101) which drives a second stage (100) having a plurality of P channel transistors and a plurality of N channel transistors (110, 111, 112), which provide the high voltage output voltage.In another embodiment of this invention, the first stage (101) is driven by a single ended control voltage (C.sub.N) and serves to drive a second stage (103) comprising a plurality of N channel transistors (110, 111, 112) and a plurality of bipolar transistors (120, 121), whereby said second stage provides the high voltage output signal. | ||||||
| 122 | Amplifier circuit | US524694 | 1983-08-19 | US4484151A | 1984-11-20 | Aloysius J. Nijman; Franciscus A. C. M. Schoofs; Job F. P. van Mil |
| An amplifier circuit for supplying output voltages which are much higher than the breakdown voltage of the individual components forming the amplifier comprises a control circuit (1) and an amplifier stage (2). The amplifier stage (2) comprises 2n transistors (7-12) where n is an integer greater than one, having their main current paths serially connected between two supply terminals (3, 4). The bases of the transistors (7-12) are connected to tapping points on a series chain of diodes (34-41) in the control circuit (1). Further supply sources (13-16) apply an incrementally decreasing sequence of voltages to transistors (8, 9) and (10, 11) so that the voltage across any of the transistors (7-12) is limited to one increment of the sequence of voltages. | ||||||
| 123 | Current amplifier stage with diode interstage connection | US250775 | 1981-04-03 | US4408167A | 1983-10-04 | Dennis L. Rogers; Albert X. Widmer |
| A multi-stage current mode differential amplifier is disclosed in which each cascaded stage includes a pair of input transistors which have their bases connected to a common voltage source and a pair of control transistors which have their emitters connected to a common current source. A diode-like device is inserted between the collector of a control transistor in one stage and the emitter of an input transistor of the succeeding stage which increases the input impedance seen by the control transistor, thereby permitting an increase in amplification for that stage. In both embodiments, the current signal is amplified at a higher rate than the rate of increase of the bias currents supplied to the emitters of the control transistors in each stage. In one embodiment, the arrangement of the diode in the collector circuit of the control transistor permits the voltage sources connected to the bases of the input transistors to remain substantially constant for each cascaded stage in contrast to prior art devices where the voltages had to be increased for each additional stage. | ||||||
| 124 | Amplifying circuit | US715630 | 1976-08-18 | US4110635A | 1978-08-29 | Masayuki Hongu; Masaharu Tokuhara; Hiromi Kawakami |
| An amplifier provides a complete video and sound I.F. signal to a synchronous detector switching circuit, and the switching signal to be applied to the switching circuit is obtained from the same amplifier by connecting a grounded base stage, with its emitter impedance, in series with the amplifier load. The grounded base stage has a load tuned to the I.F. carrier frequency, and the filtered signal from the grounded base is the signal applied as the switching signal to the synchronous detector switching circuit. | ||||||
| 125 | Stacked transistor output amplifier | US753025 | 1976-12-22 | US4079336A | 1978-03-14 | William Harlos Gross |
| In transistor output stages, where the applied voltage exceeds the voltage rating of available transistors, stacking is employed to divide the voltage across two or more series connected devices. A complementary emitter follower transistor is employed in the biasing of the stacking transistor along with a current source acting as the emitter follower load. This arrangement provides constant current drive for the stacking transistor without resorting to low value biasing resistors which produce excessive current flow under quiescent conditions. | ||||||
| 126 | Amplifier circuit | US564843 | 1975-04-03 | US3955147A | 1976-05-04 | Nicolaas Van Hurck; Dirk Blom |
| Low-distortion amplifier comprising n transistors (n .gtoreq. 3) connected in series for direct currents, (n - 1) of these transistors being connected in parallel for alternating currents to ensure low dissipation and a low supply voltage. | ||||||
| 127 | Differential amplifier circuits | US35086173 | 1973-04-13 | US3815038A | 1974-06-04 | DAVIS T |
| A differential amplifier circuit has two transistors of opposite polarity. The emitters of the two transistors are coupled in series by a resistor while a collector of one transistor is coupled to a voltage source by another resistor, equal in value to the first resistor, which will reverse-bias that collector. The collector of the other transistor is also coupled to a voltage source of different potential than the first source. The polarities of the voltage sources are chosen to reverse-bias the collector of each transistor. The input signals are applied to the base of each transistor. The output taken between the two collectors will be the difference between the inputs.
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| 128 | Electronic amplifier circuit | US3725676D | 1971-07-27 | US3725676A | 1973-04-03 | MELCHIOR G |
| An electronic amplifier circuit including a control transistor connecting a load to a low voltage source in response to a control signal below a prescribed level and control means for switching a high voltage source to said control transistor to energizing said load when the control signal exceeds the prescribed level.
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| 129 | High voltage transistor amplifier with constant current load | US3603892D | 1969-10-10 | US3603892A | 1971-09-07 | GUISINGER JOHN E; LEWICKI GEORGE W |
| An amplifying circuit is disclosed wherein a constant current source is used as the collector load for an output amplifying transistor to provide high gain voltage amplification. The amplifying circuit has an high output impedance operable from a high DC supply voltage. The constant current source in one embodiment comprises a plurality of cascade connected transistors, having their base bias'' fixedly determined by either diodes or voltage cells. The number of cascade connected transistors may be varied to accommodate any supply voltage level while insuring that each load transistor operates below its avalanche breakdown range.
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| 130 | Transistor circuit arrangement | US45753165 | 1965-05-20 | US3373370A | 1968-03-12 | LETSINGER ROBERT M |
| 131 | Push-pull amplifier operated with one input | US36229164 | 1964-04-24 | US3328713A | 1967-06-27 | SUKEHIRO ITO; HIROSHI KASHIWAGI |
| 132 | Variable gain transistor amplifier | US25311563 | 1963-01-22 | US3231827A | 1966-01-25 | ERNST LEGLER |
| 133 | Signalling receiver | US3681960 | 1960-06-17 | US3112430A | 1963-11-26 | ROSSUM HENDRIKUS CORNELIS VAN; AUGUST POPPE JAN KAREL |
| 134 | Transistor tone generator and power amplifier | US86322559 | 1959-12-31 | US3037171A | 1962-05-29 | CEROFOLINI GABRIELE F |
| 135 | Series energized transistor amplifier | US60999656 | 1956-09-14 | US3018446A | 1962-01-23 | KNUDSON BRENTON C |
| 136 | Series transistor circuit | US83769659 | 1959-09-02 | US3018433A | 1962-01-23 | STONE IV JOHN |
| 137 | Series energized transistor amplifier | US47180554 | 1954-11-29 | US2981895A | 1961-04-25 | KOCH WINFIELD R |
| 138 | Control circuits for series connected semiconductors | US54399755 | 1955-10-31 | US2957993A | 1960-10-25 | GEORG SICHLING |
| 139 | Telescopic voltage amplifier | US56915156 | 1956-03-02 | US2888525A | 1959-05-26 | ECKESS WILLIAM S; SHERMAN KENNETH I; DEAVENPORT JOE E |
| 140 | Transistor amplifier | US24642851 | 1951-09-13 | US2666818A | 1954-01-19 | WILLIAM SHOCKLEY |
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