公开(公告)号：US3631322A

公开(公告)日：1971-12-28

申请号：US3631322D

申请日：1969-12-04

Applicant: TEXAS INSTRUMENTS INC

Inventor： KRUGER CURTIS F

IPC: H02H5/04 ,  H05B41/46 ,  H02H7/04

CPC classification number: H05B41/46 ,  H02H5/042

Abstract: A fluorescent lamp ballast protector which senses and limits the amount of heat generated within a ballast, thereby keeping temperature in the ballast within a preselected temperature limit to avoid deleterious effects on insulation comprises a heatresponsive layer of material having negligible resistance at temperatures below a threshold and a resistance which increases by several orders of magnitude per degree at temperatures above the threshold. The layer is preferably placed in optimum heattransfer relation with the windings and electrically connected in series relation between a power source and the ballast. The sensor/protector can be mounted on a separate heat-conductive member to enhance heat transfer.

公开(公告)号：US3215873A

公开(公告)日：1965-11-02

申请号：US3227260

申请日：1960-05-27

Applicant: TEXAS INSTRUMENTS INC

Inventor： KRUGER CURTIS F ,  RICE JR HARRY F

IPC: H01H37/54 ,  H02K11/00

CPC classification number: H01H37/5436 ,  H02K11/25

公开(公告)号：US3083309A

公开(公告)日：1963-03-26

申请号：US3245560

申请日：1960-05-27

Applicant: TEXAS INSTRUMENTS INC

Inventor： BROWN HARRY W ,  JACOBY THOMAS A ,  KRUGER CURTIS F

IPC: H01H37/54 ,  H02K11/00

CPC classification number: H01H37/54 ,  H01H2037/5463 ,  H02K11/25

公开(公告)号：US3213240A

公开(公告)日：1965-10-19

申请号：US16758462

申请日：1962-01-22

Applicant: TEXAS INSTRUMENTS INC

Inventor： HARPER JR WALTER R ,  KRUGER CURTIS F ,  STRACHAN RICHARD W

IPC: H01H37/54

CPC classification number: H01H37/54 ,  H01H2037/5463

公开(公告)号：US2967920A

公开(公告)日：1961-01-10

申请号：US77729858

申请日：1958-12-01

Applicant: TEXAS INSTRUMENTS INC

Inventor： HARPER JR WALTER R ,  KRUGER CURTIS F

IPC: H01H37/54 ,  H01H81/02

CPC classification number: H01H37/54 ,  H01H81/02 ,  H01H2037/5463