Patents by Inventor Oedilius J. Bisschop

Oedilius J. Bisschop has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Battery charger with charging current variation based on a temperature difference between the battery and its environment
    Patent number: 5828203
    Abstract: A battery charger whose charging current is shut off on the basis of the temperature difference between the ambient temperature, measured by means of a first sensor (R.sub.A), and the battery temperature, measured by means of a second sensor (R.sub.B). The error in the measurement of the temperature difference, which is caused by the input voltage dependent heat generation by the power supply (PS) in the battery charger, is compensated by a third signal (k*V.sub.i) which is representative of the anticipated additional heat generation as a result of a varying input voltage (V.sub.i).
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: October 27, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Wieger Lindeboom, Oedilius J. Bisschop
  • Power supply circuit
    Patent number: 5717320
    Abstract: A buck converter comprises a load or a rechargeable battery (B), a self-inductance (L2), a diode (D2) and a switching transistor (T1). The current through the switching transistor (T1) is measured by means of a current sensor (Rs) which triggers a monostable multivibrator (MMV) when a given peak current is reached. The monostable multivibrator (MMV) turns off the switching transistor (T1) for a fixed time within which the current through the self-inductance (L2) is supplied to the load (B) via the diode (D2).
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: February 10, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Schelte Heeringa, Oedilius J. Bisschop
  • Charging device for charging rechargeable batteries with temperature-dependent termination of the charging process
    Patent number: 5604419
    Abstract: A charging device for charging a rechargeable battery including a current supplier for supplying charging current to a battery having an initial temperature at the beginning of the supply of charging current, a selector for selecting an end temperature based on a temperature range the initial temperature is in and a current terminator for terminating the supply of charging current when a battery reaches the end temperature. A rechargeable battery including a strain gauge having a temperature coefficient differing from a temperature coefficient of the battery housing is also provided.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: February 18, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Oedilius J. Bisschop, Johann R. G. C. M. Van Beek, Eduard E. A. Gillissen, Martinus H. Van Maaren