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    DIGITAL FEEDBACK CONTROL CIRCUIT OF MOTOR
    3.
    发明专利
    DIGITAL FEEDBACK CONTROL CIRCUIT OF MOTOR 失效

    公开(公告)号：JPH0365086A

    公开(公告)日：1991-03-20

    申请号：JP20669190

    申请日：1990-08-02

    Applicant: KOLLMORGEN TECH CORP

    Inventor： JIYOOJI EICHI ERISU

    IPC: H02P29/00 ,  G05B19/39

    Abstract: PURPOSE: To derive the digital feedback data of a motor position with high resolution at low cost by digitizing an analog error siggnal and subordinating the digitized data to a quantized positional data. CONSTITUTION: A resolver 101 measures the angular position of a motor 107 having a rotor winding being energized by an AC signal sinW. A resolver energizing signal is delivered to a resolver digital converter 102 along with a signal induced in a quadrature winding and converted into an analog voltage ILSB. A digital positional signal DPOS is introduced to the input port A of an adder 105. An analog output from a K scale 103 is converted through an A/D converter into a digital value. A 10 bit converted digital data ILSB is inputted to the input port B and the quantized value DPOS of the motor position is inputted to the input port A.

    OPTICALLY PHOTOGRAPHABLE PERMANENT RESIST
    5.
    发明专利
    OPTICALLY PHOTOGRAPHABLE PERMANENT RESIST 失效

    公开(公告)号：JPH02135349A

    公开(公告)日：1990-05-24

    申请号：JP23837789

    申请日：1989-09-12

    Applicant: KOLLMORGEN TECH CORP ,  HAVEN CORP

    Inventor： EDOWAADO JIYON RIICHI ,  SUTEIIBUN MAACHIN JIYONSON

    IPC: C08F2/46 ,  C08F2/48 ,  C08G59/00 ,  C08G59/18 ,  G03F7/027 ,  G03F7/032 ,  G03F7/075 ,  H05K3/18 ,  H05K3/28

    Abstract: PURPOSE: To obtain a one-pack soldering resist having a long service life by low energy exposure by combining a specified solid resinous compd. with a monomer capable of polymn. with a photopolymn. initiator. CONSTITUTION: An optically definable polymerizable compsn. contg. a monomer capable of polymn. by the action of a photopolymn. initiator and a resinous compd. having two or more epoxide groups as functional groups and an acid value of about 15-60 is dispersed in a solvent to prepare a coating compsn. having fluidity. This compsn. is applied on a substrate and dried to form an optically definable coating film and a part of the coating film is made insoluble by exposure to UV. The coating film is then brought into contact with an alkaline aq. developing soln. to leave an optically defined coating film on the substrate and a permanent optically defined coating film is formed by crosslinking the resinous compd. Curing can be carried out without requiring irradiation with high energy UV and a one-pack soldering resist capable of optical pickup is obtd.

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