公开(公告)号：US3246182A

公开(公告)日：1966-04-12

申请号：US24701562

申请日：1962-12-26

Applicant: RCA CORP

Inventor： HANCHETT GEORGE D

IPC: G05B19/07

CPC classification number: G05B19/07 ,  Y10T307/951

公开(公告)号：US3469113A

公开(公告)日：1969-09-23

申请号：US3469113D

申请日：1966-02-28

Applicant: RCA CORP

Inventor： HANCHETT GEORGE D

IPC: H03K17/725 ,  H03K17/60

CPC classification number: H03K17/725

公开(公告)号：US3334244A

公开(公告)日：1967-08-01

申请号：US39928064

申请日：1964-09-25

Applicant: RCA CORP

Inventor： HANCHETT GEORGE D

IPC: G05D23/24 ,  H03K17/725

CPC classification number: H03K17/725 ,  G05D23/1909 ,  G05D23/24

公开(公告)号：US3680068A

公开(公告)日：1972-07-25

申请号：US3680068D

申请日：1968-09-05

Applicant: RCA CORP

Inventor： HANCHETT GEORGE D

IPC: A61G11/00 ,  G05D23/24 ,  G08B21/20 ,  G08B23/00 ,  H02J9/06

CPC classification number: G08B21/185 ,  A61G11/00 ,  G05D23/1909 ,  G05D23/24 ,  G08B23/00 ,  H02J9/061

Abstract: Disclosed is an alarm circuit for detecting change in the condition of an ambient being monitored. Two voltage dependent regenerative switches are connected in parallel with a power supply that provides an intermittent voltage. A condition sensitive element is coupled to the circuit to cause one of said regenerative switches to be in a conducting state as a function of the condition being monitored. When a change occurs in the ambient, the other regenerative switch becomes conductive thereby activating an alarm device which is coupled thereto.

Abstract translation: 公开了一种用于检测被监测环境条件变化的报警电路。 两个电压相关的再生开关与提供间歇电压的电源并联连接。 条件敏感元件耦合到电路，以使所述再生开关中的一个作为被监视的状态的函数处于导通状态。 当在环境中发生变化时，另一个再生开关变为导通，从而激活与其耦合的报警装置。

公开(公告)号：US3671778A

公开(公告)日：1972-06-20

申请号：US3671778D

申请日：1970-09-11

Applicant: RCA CORP

Inventor： HANCHETT GEORGE D

IPC: H03K17/725 ,  H03K17/00

CPC classification number: H03K17/725

Abstract: A bidirectional gate controlled device, such as a triac, is connected in circuit with a time constant circuit, an AC source, and a load. The time constant circuit is adapted to charge only when the AC source is of a given polarity; its discharge duration being sufficient to provide a triggering signal to the gate of the device to trigger it into consecutive conduction in both of its conducting directions.

Abstract translation: 诸如三端双向可控硅开关之类的双向栅极控制器件与时间常数电路，AC源和负载连接在一起。 该时间常数电路仅在AC源为给定极性时才进行充电; 其放电持续时间足以向器件的栅极提供触发信号，以在其导通方向上将其触发成连续导通。

公开(公告)号：US3369167A

公开(公告)日：1968-02-13

申请号：US53053566

申请日：1966-02-28

Applicant: RCA CORP

Inventor： HANCHETT GEORGE D

IPC: H02P7/292

CPC classification number: H02P7/293 ,  Y10S388/917