Single inductor multiple output switching devices

Details Single inductor multiple output switching devices Single inductor multiple output switching devices

2009-05-09

2011-11-01

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S271000, C323S283000

Reexamination Certificate

active

08049472

ABSTRACT:
Single inductor multiple output (SIMO) switching devices with efficient regulating circuits. The SIMO switching device includes a plurality of time division multiplexing (TDM) switches for switching current through an inductor of the SIMO switching device. The plurality of TDM switches produces a plurality of outputs. The SIMO switching device further includes an error calculation circuit operatively coupled to the plurality of outputs for determining a calculated error from the plurality of outputs; a time slot generation circuit for controlling the plurality of TDM switches according to the calculated error; and a pulse width modulation (PWM) control circuit operatively coupled to the time slot generation circuit for controlling a plurality of PWM switches of a switching stage of the SIMO switching device in a continuous conduction mode (CCM) of operation. The PWM switches are controlled according to the time slots generated by the time slot generation circuit.

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Dongsheng Ma; Wing-Hung Ki; Chi-Ying Tsui; Mok, P.K.T., “Single-inductor multiple-output switching converters with time-multiplexing control in discontinuous conduction mode,” Solid-State Circuits, IEEE Journal of, vol. 38, No. 1, pp. 89-100, Jan. 2003. doi: 10.1109/JSSC.2002.806279 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1158785.

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