公开(公告)号：KR790000309B1

公开(公告)日：1979-04-23

申请号：KR740002505

申请日：1974-05-21

Applicant: RCA CORP

Inventor： LEIDICH A J

Abstract: This cct. was composed of Tr. (10) for output, an auxiliary Tr.(20), a res. (25), a volt detecting Tr.(30) and a clamping Tr.(40), the base-emitter of Tr.(10) was k times that of Tr.(20). when an overcurrent flows this composition cct., a part of the collector current of Tr.(10) flow through res.(25) and then the base-emitter or Tr. (30) is turned "ON" by the volt. of res(15) biasing Tr.(40). Thus, the base-emitter of this cct. is clamped.

公开(公告)号：FI152674A

公开(公告)日：1974-11-25

申请号：FI152674

申请日：1974-05-17

Applicant: RCA CORP

Inventor： LEIDICH A J

IPC: H02H7/20 ,  H03F1/52 ,  H03K17/082 ,  H03K

Abstract: The base-emitter junctions of a power transistor and an auxiliary transistor are paralleled. The smaller collector current of the auxiliary transistor can be sampled so as to indirectly sample the larger collector current of the power transistor. When the indirect sampling indicates that the collector current in the power transistor is tending to exceed its rated maximum value, its base and emitter electrodes are clamped. This prevents increase in the base-emitter potential of the power transistor and consequently increase of its collector-to-emitter current.

公开(公告)号：AU509562B2

公开(公告)日：1980-05-15

申请号：AU3169277

申请日：1977-12-19

Applicant: RCA CORP

Inventor： LEIDICH A J

IPC: H03F1/30 ,  H03F1/42 ,  H03F1/52 ,  H03F3/20 ,  H03F3/30 ,  H03F3/26

Abstract: A modified connection of elements in a push-pull transistor amplifier with driver circuitry providing over-current protection, which amplifier has previously been described by the present inventor in U.S. Pat. No. 3,855,540, increases the current gain through the push-pull transistor amplifier by a factor equal to the common-emitter forward current gain (hfe) of a transistor.

公开(公告)号：SE7714954L

公开(公告)日：1978-07-08

申请号：SE7714954

申请日：1977-12-30

Applicant: RCA CORP

Inventor： LEIDICH A J

IPC: H03F1/30 ,  H03F1/42 ,  H03F1/52 ,  H03F3/20 ,  H03F3/30 ,  H03F3/26

Abstract: A modified connection of elements in a push-pull transistor amplifier with driver circuitry providing over-current protection, which amplifier has previously been described by the present inventor in U.S. Pat. No. 3,855,540, increases the current gain through the push-pull transistor amplifier by a factor equal to the common-emitter forward current gain (hfe) of a transistor.

公开(公告)号：SE392659B

公开(公告)日：1977-04-04

申请号：SE7406748

申请日：1974-05-21

Applicant: RCA CORP

Inventor： LEIDICH A J

IPC: H03F1/30 ,  H03F3/20 ,  H03F3/213 ,  H03F3/30 ,  H03F3/04

公开(公告)号：SE420879B

公开(公告)日：1981-11-02

申请号：SE7714954

申请日：1977-12-30

Applicant: RCA CORP

Inventor： LEIDICH A J

IPC: H03F1/30 ,  H03F1/42 ,  H03F1/52 ,  H03F3/20 ,  H03F3/30 ,  H03F3/26

Abstract: A modified connection of elements in a push-pull transistor amplifier with driver circuitry providing over-current protection, which amplifier has previously been described by the present inventor in U.S. Pat. No. 3,855,540, increases the current gain through the push-pull transistor amplifier by a factor equal to the common-emitter forward current gain (hfe) of a transistor.

公开(公告)号：SE7409817L

公开(公告)日：1975-02-04

申请号：SE7409817

申请日：1974-07-30

Applicant: RCA CORP

Inventor： LEIDICH A J

IPC: H01L29/66 ,  H01L29/74 ,  H02H9/04 ,  H02H3/22