中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

59 records (took 0.022 seconds)

    51.
    发明专利
    未知

    公开(公告)号：DE1963373B2

    公开(公告)日：1976-09-09

    申请号：DE1963373

    申请日：1969-12-18

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: G05F1/12 ,  H02M1/08 ,  H02P25/04 ,  H02P27/06 ,  H02P27/08 ,  G05F1/40

    Abstract: 1292656 Transistor pulse oscillators BORGWARNER CORP 5 Nov 1969 [26 Dec 1968] 54349/69 Heading H3T [Also in Division H2] In a variable frequency inverter (see Division H2) the frequency of a transistorized voltagecontrolled pulse oscillator 18 is controlled by variation of the base current of a further transistor 36 under control of fine and course potentiometers 60 . . . 62 and having temperature compensating diodes 56. . . 58.

    55.
    发明专利
    未知

    公开(公告)号：DE1763835A1

    公开(公告)日：1971-12-30

    申请号：DE1763835

    申请日：1966-01-08

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: H02P27/06 ,  H02M7/515 ,  H02M7/48

    Abstract: 1,119,773. Inverters. BORG-WARNER CORP. 14 Dec., 1965 [11 Feb., 1965], No. 53096/65. Heading H2F. An inverter (one phase of which is shown in Fig. 6) having a pair of semi-conductor switches 22, 23 connected in series with commutating inductances 27, 28 across the D.C. lines 20, 21 has an energy return circuit for the commutating energy stored in each inductor. For inductor 28 this comprises the other inductor 27, diode 50 and a primary winding 48 of transformer 56. Energy is returned to the supply both conductively through this circuit and inductively through the transformer 56 and the rectifying circuit 51, 52 connected to its secondary winding 49. In a more practical circuit (Fig. 7) reverse current diodes 33, 34 are provided which function also as the rectifier connected to the transformer secondary winding. The capacitors 31, 32 are not commutating capacitors but store energy to ensure that when the associated semiconductor switch is turned on energy is rapidly passed to the load. In the embodiment of Fig. 9 the first transformer comprises the windings 62, 63, 64 and the windings of the commutating inductors (all wound on a common core) are extended as shown at 70, 71.

    56.
    发明专利
    未知

    公开(公告)号：FR2027122A1

    公开(公告)日：1970-09-25

    申请号：FR6944176

    申请日：1969-12-19

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: H02M1/08 ,  H02P25/04 ,  G05F1/12 ,  H02P27/06 ,  H02P27/08 ,  G05F1/00 ,  H02P5/00

    Abstract: 1292656 Transistor pulse oscillators BORGWARNER CORP 5 Nov 1969 [26 Dec 1968] 54349/69 Heading H3T [Also in Division H2] In a variable frequency inverter (see Division H2) the frequency of a transistorized voltagecontrolled pulse oscillator 18 is controlled by variation of the base current of a further transistor 36 under control of fine and course potentiometers 60 . . . 62 and having temperature compensating diodes 56. . . 58.

    57.
    发明专利
    未知

    公开(公告)号：LU60061A1

    公开(公告)日：1970-06-26

    申请号：LU60061D

    申请日：1969-12-19

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: H02M1/08 ,  G05F1/12 ,  H02P25/04 ,  H02P27/06 ,  H02P27/08

    Abstract: 1292656 Transistor pulse oscillators BORGWARNER CORP 5 Nov 1969 [26 Dec 1968] 54349/69 Heading H3T [Also in Division H2] In a variable frequency inverter (see Division H2) the frequency of a transistorized voltagecontrolled pulse oscillator 18 is controlled by variation of the base current of a further transistor 36 under control of fine and course potentiometers 60 . . . 62 and having temperature compensating diodes 56. . . 58.

Patent Agency Ranking