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US 2002/0171471 A1Published application
Regulating circuit for a high voltage generator
AssigneeEM Microelectronic-Marin SA
InventorsJean-Felix Perotto, Olivier Rey
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AssigneeEM Microelectronic-Marin SA
InventorsJean-Felix Perotto, Olivier Rey
Estimating the term…
A regulating circuit for a high voltage generator, used in particular for supplying a non-volatile memory, includes an amplitude modulator (101) which receives at input terminals at least two clock signals (phi; nphi) and which supplies at output terminals at least two modulated clock signals (102; 103) to a charge pump (104). The circuit also includes a feedback loop, connecting an output of the charge pump to said amplitude modulator. This loop includes a comparator (109), which receives at a first input terminal an output quantity (Ibr) from the charge pump and at a second input terminal a reference quantity (Ipol), and which supplies at an output a comparison signal (Ucomp). The feedback loop further includes an analogue low-pass filter (105) at the output of said comparator converting said comparison signal into an analogue control signal (106) for the amplitude modulator.
Regulating circuit for a high voltage generator, used in particular for supplying a non-volatile memory, including an amplitude modulator which receives at input terminals at least two clock signals and which supplies at output terminals at least two modulated clock signals to a charge pump, a feedback loop, connecting an output of the charge pump to said amplitude modulator, said feedback loop including a comparator which receives at a first input terminal an output quantity from said charge pump and at a second input terminal a reference quantity, and which supplies at an output a comparison signal wherein said feedback loop further includes an analogue low-pass filter at the output of said comparator converting said comparison signal into an analogue control signal for said amplitude modulator.
Dependencies are inferred from the claim text.