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1. 发明授权

US3599008A Electrical circuits for simulating inductor networks 失效
标题翻译：用于模拟电感网络的电路
公开(公告)号：US3599008A
公开(公告)日：1971-08-10
申请号：US3599008D
申请日：1968-07-09
申请人： ASS ELECT IND
发明人： GORSKI-POPIEL JERZY
IPC分类号： H03H11/04 , H03H11/40 , H03H11/48 , H01L , H01P1/24
CPC分类号： H03H11/405 , H03H11/0416 , H03H11/48 , H03H11/485 , Y10T307/696
摘要： An electric circuit, for example an active filter circuit, in which inductors are simulated by means of positive immitance converter circuits terminated by resistors. One positive immittance converter circuit is provided for each external ungrounded node of the inductor network, and the terminating resistors are arranged to have the same topology as the inductor network.

2. 发明授权

US3546639A Gyrator network 失效
公开(公告)号：US3546639A
公开(公告)日：1970-12-08
申请号：US3546639D
申请日：1967-10-27
申请人： ASS ELECT IND
发明人： DREW ANTHONY JOHN , GORSKI-POPIEL JERZY
IPC分类号： H03H11/40 , H03H11/42 , H03H7/44 , H03H11/00
CPC分类号： H03H11/42 , H03H11/405

3. 发明专利

GB1095041A Improvements relating to transistor circuits 未知
公开(公告)号：GB1095041A
公开(公告)日：1967-12-13
申请号：GB165264
申请日：1964-01-14
申请人： ASS ELECT IND
发明人： DREW ANTHONY JOHN , GORSKI-POPIEL JERZY
IPC分类号： H03F3/343
摘要： 1,095,041. Transistor circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 17, 1964 [Jan. 14, 1964], No. 1652/64. Heading H3T. A circuit having selectable current gain characteristics comprises a first transistor T1 having impedances R1, R2 connected as shown, impedance R1 being connected in series with an electrode of a further transistor T2 in such a way that the overall current gain of the circuit is dependent on the ratio of the moduli of R1 and R2. As shown in Fig. 11, terminal B of unit U (Fig. 1) is connected to the collector of T2 whilst the collector of T1 is connected to the base of T2. In Fig. 3 (not shown) terminals B or E are connected to the base of T2. In Figs. 4 to 9 (not shown) terminals E or B of unit U are connected to the emitter of T2. In Figs. 10 to 15 (not shown) terminals B or E of unit U are connected to the collector of T2. In all embodiments, the collector of T1 is either connected to ground through an negligible impedance or connected to one of the remaining electrodes of T2. In Fig. 11, base bias for T1 may be provided by a Zener diode connected in series with terminal B. In Fig. 2 (not shown) T1 is replaced by a compound emitter follower. Impedances R1, R2 should be high compared with the emitter and base resistances of T1; this may result in an increase of input impedance. Expressions are given for commonbase and common-emitter current gain for all embodiments.

4. 发明专利

GB1210384A A POSITIVE IMPEDANCE INVERTER CIRCUIT 未知
公开(公告)号：GB1210384A
公开(公告)日：1970-10-28
申请号：GB4966367
申请日：1966-11-01
申请人： ASS ELECT IND
发明人： DREW ANTHONY JOHN , GORSKI-POPIEL JERZY
IPC分类号： H03H11/42
摘要： 1,210,384. Gyrators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 Nov., 1967 [1 Nov., 1966], No. 49663/67. Heading H3U. A positive impedance inverter comprises a pair of ports 1, 2 and 3, 4 interconnected by transistors T1, T2 and current controlled amplifiers A1, A2. Input current at 1, 2 is fed via transistor T1 and amplifier A1 to produce at 3, 4 a voltage proportional to the input current, and a feedback path via A2 controls the relationship between the current at 3, 4 and the voltage at 1, 2. The transistors T1, T2 may be replaced by Darlington pairs shunted by resistors (R1, R2) to reduce the h 11 parameter, and to make the output impedance independent of transistor characteristics.

5. 发明专利

GB1130195A Improvements relating to electrical networks 未知
公开(公告)号：GB1130195A
公开(公告)日：1968-10-09
申请号：GB4598466
申请日：1966-10-14
申请人： ASS ELECT IND
发明人： GORSKI-POPIEL JERZY
IPC分类号： H03H7/06
摘要： 1,130,195. Filter networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 15 Jan., 1968 [14 Oct., 1966], No. 45984/66. Heading H3U. A frequency selective network is composed of positive and negative resistive and capacitative elements in which voltage gain rejection is effected by at least two cascade-connected resistive potential dividers, the two dividers being composed of resistive elements which also relate to the RC frequency selective characteristic of the network. The potential dividers are provided to give the RC-N.I.C. network a low sensitivity. The Specification sets out the method of synthesis with reference to circuit diagrams.

6. 发明专利

DE1537578A1 未知
公开(公告)号：DE1537578A1
公开(公告)日：1970-01-15
申请号：DE1537578
申请日：1967-10-31
申请人： ASS ELECT IND
发明人： JOHN DREW ANTHONY , GORSKI-POPIEL JERZY
IPC分类号： H03H11/40 , H03H11/42 , H03H7/44

7. 发明专利

GB1048192A Improvements relating to r.c. active ladder networks 未知
公开(公告)号：GB1048192A
公开(公告)日：1966-11-16
申请号：GB1315464
申请日：1964-03-31
申请人： ASS ELECT IND
发明人： DREW ANTHONY JOHN , GORSKI-POPIEL JERZY
IPC分类号： H03H11/10
摘要： 1,048,192. Impedance networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 22, 1965 [March 31, 1964; Aug. 27, 1964], Nos. 13154/64 and 35155/64. Heading H3U. An active RC ladder network presenting a rational driving point immittanee (impedance or admittance) function of a complex frequency variable with real coefficients and comprising only ŒR or ŒC elements or combinations thereof is characterized by a succession of series and shunt sections conforming to a continued fractions expansion of said frunction with negative elements included only in shunt arms of the network and constituted by passive R or C elements or combinations thereof in conjunction with negative impedance converting means. The mathematics underlying the invention are discussed at length in the Specification. A particular network functioning as a 4th order bandpass filter with ¢dB ripple in the pass-band is derived and shown in Fig. 24.

8. 发明专利

DE1541903A1 未知
公开(公告)号：DE1541903A1
公开(公告)日：1969-11-13
申请号：DE1541903
申请日：1967-10-31
申请人： ASS ELECT IND
发明人： JOHN DREW ANTHONY , GORSKI-POPIEL JERZY
IPC分类号： H03H11/40 , H03H11/42 , H03H7/44

9. 发明专利

GB1048093A Improvements relating to negative impedance converter circuits 未知
公开(公告)号：GB1048093A
公开(公告)日：1966-11-09
申请号：GB489064
申请日：1964-02-05
申请人： ASS ELECT IND
发明人： DREW ANTHONY JOHN , GORSKI-POPIEL JERZY
IPC分类号： H03K3/281 , H04B3/18
摘要： 1,048,093. Negative impedance converters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 2, 1965 [Feb. 5, 1964], No. 4890/64. Heading H3T. To correct for parasitic impedances and offset voltagers or currents in a negative impedance converter, the two-port converter circuit of the invention is provided with one or more of (a) a source of D.C. potential connected to a terminal of the second port to render the potentials at each terminal the same, (b) a correcting element, of similar value to the series parasitic impedance and/or offset voltage appearing at the first port, which is connected in series with the second port, ((c) a correcting element, of similar value to the shunt parasitic impedance and/or associated offset current appearing at the second port, which is connected in parallel with the first port. In the circuit of Fig. 7 the correcting impedance is resistor R 11 and resistor R 5 in the collector circuit of transistor T 1 serves as an extra D.C. source to correct the offset current appearing at the second source. At the second port the series correcting impedance is resistor R 7 and the output port terminal potentials are rendered equal by Zener diode ZD. The conversion ratio of the circuit, preferably - 1, is determined by the ratio of R 1 to R 2 and may be altered by the resistors R 8 , R 9 , R 10 acting to alter the effective impedance of R 2 . R 9 is altered to maintain the potential charge across R 8 equal to zero. A simplified version of the circuit of Fig. 7 is illustrated in Fig. 8 (not shown). In Fig. 9 (not shown) the resistors R 3 , R 4 of Fig. 7 are replaced by transistors T 3 , T 4 and the current and voltage correcting elements comprise transistors T 5 , T 6 . The single transistors of the circuits may be replaced by Darlington compound transistors (Fig. 10, not shown). A further alternative (Fig. 13, not shown) is a circuit based on a bridge arrangement (Fig. 11. not shown).

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