Abstract: A system and circuit for achieving bidirectional hysteretic current mode control of a converter. The system comprises a summer that provides a constant hysteresis and has added switching noise immunity, a comparator, a lossless inductor current sense means and a converter. A circuit using the inductors internal resistance for sensing the current through an inductor in a lossless manner is described. The circuit preserves both DC and dynamic current information while incorporating the RC time constant, difference amplifier and signal amplification, all using only one amplifier. This circuit provides excellent common mode and differential noise immunity, while still having a high bandwidth and small group delay of the current signal. A method to accomplish stability of a current mode controlled converter when closing the loop to control the output voltage with very high accuracy and gain is described.

Abstract: A system and circuit for achieving bidirectional hysteretic current mode control of a converter. The system comprises a summer that provides a constant hysteresis and has added switching noise immunity, a comparator, a lossless inductor current sense means and a converter. A circuit using the inductors internal resistance for sensing the current through an inductor in a lossless manner is described. The circuit preserves both DC and dynamic current information while incorporating the RC time constant, difference amplifier and signal amplification, all using only one amplifier. This circuit provides excellent common mode and differential noise immunity, while still having a high bandwidth and small group delay of the current signal. A method to accomplish stability of a current mode controlled converter when closing the loop to control the output voltage with very high accuracy and gain is described.

Abstract: A system and circuit for achieving bidirectional hysteretic current mode control of a converter. The system comprises a summer that provides a constant hysteresis and has added switching noise immunity, a comparator, a lossless inductor current sense means and a converter. A circuit using the inductors internal resistance for sensing the current through an inductor in a lossless manner is described. The circuit preserves both DC and dynamic current information while incorporating the RC time constant, difference amplifier and signal amplification, all using only one amplifier. This circuit provides excellent common mode and differential noise immunity, while still having a high bandwidth and small group delay of the current signal. A method to accomplish stability of a current mode controlled converter when closing the loop to control the output voltage with very high accuracy and gain is described.

Abstract: This invention concerns a capacitively coupled cell balancer with a common AC bus. It comprises either a half or full bridge connected to each cell of a set of N cells, which are either floating or connected in series. The midpoints of each half bridge and the full bridges are coupled through coupling capacitors to a common AC bus.

Abstract: This invention concerns a capacitively coupled cell balancer with a common AC bus. It comprises either a half or full bridge connected to each cell of a set of N cells, which are either floating or connected in series. The midpoints of each half bridge and the full bridges are coupled through coupling capacitors to a common AC bus.

Abstract: A system and circuit for achieving bidirectional hysteretic current mode control of a converter. The system comprises a summer that provides a constant hysteresis and has added switching noise immunity, a comparator, a lossless inductor current sense means and a converter. A circuit using the inductors internal resistance for sensing the current through an inductor in a lossless manner is described. The circuit preserves both DC and dynamic current information while incorporating the RC time constant, difference amplifier and signal amplification, all using only one amplifier. This circuit provides excellent common mode and differential noise immunity, while still having a high bandwidth and small group delay of the current signal. A method to accomplish stability of a current mode controlled converter when closing the loop to control the output voltage with very high accuracy and gain is described.

Abstract: The invention discloses a method, together with circuits for performing these actions, of driving a capacitance with a quasi-square wave of variable duty cycle and frequency in such a manner that the energy stored in the capacitor is not lost. The energy is actually recycled to be stored back in the capacitor again but with an effective opposite polarity voltage. The circuits to achieve this operation comprise of the capacitor to be driven, coupled to an inductor which is driven by either two switches and two diodes, or by two bilateral switches and timing circuitry.

Abstract: The invention discloses a method, together with circuits for performing these actions, of driving a capacitance with a quasi-square wave of variable duty cycle and frequency in such a manner that the energy stored in the capacitor is not lost. The energy is actually recycled to be stored back in the capacitor again but with an effective opposite polarity voltage. The circuits to achieve this operation comprise of the capacitor to be driven, coupled to an inductor which is driven by either two switches and two diodes, or by two bilateral switches and timing circuitry.