A voltage/pulse converting apparatus

    公开(公告)号:GB2319127B

    公开(公告)日:2000-09-06

    申请号:GB9720799

    申请日:1997-09-30

    Abstract: Apparatus for converting a voltage into pulses has a charging part 11 receiving the voltage, a voltage comparing part 12 for comparing the output voltage from the charging part 11 with a reference voltage value, a pulse extracting part 13 for outputting pulses in response to the comparison result; and a discharging part 14 for discharging the charge in the charging part 11 in response to the output signal of the pulse extracting part 13 or the comparing part 12.

    Analogue multiplier using MOSFETs in nonsaturation region and current mirror

    公开(公告)号:GB2317980B

    公开(公告)日:2000-09-06

    申请号:GB9720798

    申请日:1997-09-30

    Inventor: HAN IL SONG

    Abstract: A multiplier capable of removing nonlinear current using current mirror circuits. The multiplier uses MOSFET and BJT devices by the BiCOMS processes. The multiplier includes three current mirror circuits. A first current mirror includes a BJT Q3 and a BJT Q5 and also the BJT Q3 is coupled in series to the n-channel MOSFET M1 between the voltage V1 and a ground voltage level. A second current mirror includes a BJT Q7 and a BJT Q8. A third current mirror includes a BJT Q4 and a BJT Q6. Consequently, input voltage signals V1 and Vdc applied to the n-channel MOSFETs M1 determine the current I1 and input voltage signals V1 and V2 applied to the n-channel MOSFET M2 determine the current I2.

    3.
    发明专利
    未知

    公开(公告)号:FR2754119B1

    公开(公告)日:1999-07-30

    申请号:FR9712278

    申请日:1997-10-02

    Inventor: HAN IL SONG

    Abstract: Control-type continuous ramp converting apparatus and method therefore. The present invention provides real-time processing of neurons in the neural network, easy implementation and reduction of manufacture cost of high density neurons in the neural network. The present invention comprises a first voltage controlling part for receiving a first voltage from an outside, and for non-linearly increasing a charged voltage in accordance with a differential continuous function of an exponential function; a second voltage controlling part for receiving a second voltage from an outside, and for non-linearly reducing a charged voltage in accordance with a differential continuous function of an exponential function; a charging part for charging an input current, and for providing the charged voltage of the charging part with the second voltage controlling part and an outside; and a plurality of switches for coupling outside and the first and the second voltage controlling part to the charging part, for selectively providing a third voltage from outside, an increased voltage and a decreased voltage based on the voltage of the charging part.

    4.
    发明专利
    未知

    公开(公告)号:FR2754119A1

    公开(公告)日:1998-04-03

    申请号:FR9712278

    申请日:1997-10-02

    Inventor: HAN IL SONG

    Abstract: Control-type continuous ramp converting apparatus and method therefore. The present invention provides real-time processing of neurons in the neural network, easy implementation and reduction of manufacture cost of high density neurons in the neural network. The present invention comprises a first voltage controlling part for receiving a first voltage from an outside, and for non-linearly increasing a charged voltage in accordance with a differential continuous function of an exponential function; a second voltage controlling part for receiving a second voltage from an outside, and for non-linearly reducing a charged voltage in accordance with a differential continuous function of an exponential function; a charging part for charging an input current, and for providing the charged voltage of the charging part with the second voltage controlling part and an outside; and a plurality of switches for coupling outside and the first and the second voltage controlling part to the charging part, for selectively providing a third voltage from outside, an increased voltage and a decreased voltage based on the voltage of the charging part.

    MOSFET analog multiplier
    5.
    发明专利

    公开(公告)号:GB2261092B

    公开(公告)日:1995-06-14

    申请号:GB9213381

    申请日:1992-06-24

    Inventor: HAN IL SONG

    Abstract: A MOSFET analog multiplier with a variable resistive MOSFET linear means for linearly varying output current I depending upon a symmetrical input voltage from voltage sources V2 and -V2 and an input voltage from an input voltage source V1 operatively associated with the symmetrical input voltage from the voltage source V2 and -V2, with the variable resistive MOSFET linear means having a node A to output the varied output current I therethrough is disclosed. An operational amplifying unit for amplifying the linearly varied output current I and which includes an operational amplifier U with an inverting input terminal connected to the node A of the MOSFET linear means, a non-inverting input terminal connected to ground, and an output terminal. The operational amplifying unit further includes a feedback element Z connected between the inverting input terminal and the output terminal of the operational amplifier U, where in use the output terminal outputs a voltage Vo.

    Multiplier
    8.
    发明专利

    公开(公告)号:GB2261093B

    公开(公告)日:1995-06-21

    申请号:GB9213382

    申请日:1992-06-24

    Inventor: HAN IL SONG

    Abstract: A MOSFET controlling multiplier for obtaining the precise function of the operational multiplication by offsetting the offset voltage of MOSFET to remove the non-linear current of MOSFET, utilizing symmetrical voltage sources and a current mirror circuit is disclosed. The MOSFET controlling multiplier utilizes a MOSFET linear means for linearly varying the output current I to a node A in accordance with an input voltage from an input voltage source Vg and a symmetrical input voltage from voltage sources Vx and -Vx. The input voltage from the input voltage source Vg is operatively associated with the symmetrical input voltage from the voltage sources Vx and -Vx. An impedance element Z outputs a voltage Vo, with the impedance element Z being connected to the node A of the MOSFET linear means and the ground.

    10.
    发明专利
    未知

    公开(公告)号:FR2683354A1

    公开(公告)日:1993-05-07

    申请号:FR9208505

    申请日:1992-07-09

    Inventor: HAN IL SONG

    Abstract: A MOSFET analog multiplier with a variable resistive MOSFET linear means for linearly varying output current I depending upon a symmetrical input voltage from voltage sources V2 and -V2 and an input voltage from an input voltage source V1 operatively associated with the symmetrical input voltage from the voltage source V2 and -V2, with the variable resistive MOSFET linear means having a node A to output the varied output current I therethrough is disclosed. An operational amplifying unit for amplifying the linearly varied output current I and which includes an operational amplifier U with an inverting input terminal connected to the node A of the MOSFET linear means, a non-inverting input terminal connected to ground, and an output terminal. The operational amplifying unit further includes a feedback element Z connected between the inverting input terminal and the output terminal of the operational amplifier U, where in use the output terminal outputs a voltage Vo.

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