Patents Assigned to Topro Technology Inc.
  • Adjustment circuit for voltage division
    Patent number: 6455952
    Abstract: An adjustable circuit for voltage division comprises a serial resistor Rn(n=1, 2 . . . n) symmetrically mapped, connected in series, and paired in parallel with a switch Sn or Sn′ apiece, wherein the switches Sn and Sn′ are oppositely operated, namely, when the former is turned “ON/OFF”, the latter is turned “OFF/ON” to thereby hold the current unchanged to obtain desired output voltage(s) by proper control of the switches and accordingly a valid portion of voltage-dividing resistor &Dgr;R′.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: September 24, 2002
    Assignee: Topro Technology Inc.
    Inventor: Chi-Chang Wang