Direct-current voltage generating circuit intermittently activated for reducing electric power consumption
AssigneeSamsung Electronics Co., Ltd.
InventorsBok-Moon Kang, Seung-Moon Yoo
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Abstract
Disclosed is a DC voltage generating circuit for reducing an electric power consumption in a semiconductor memory device. The DC voltage generating circuit comprises: a refresh counter for setting a refresh cycle; a power source supply controller for logically combining a counting value supplied from the refresh counter and a self-refresh timer driving signal, thereby to generate a power source supply control signal in a refresh section; and a DC voltage generator for generating and supplying a DC voltage through an output terminal of the DC voltage generator, as controlled by the power source supply control signal supplied from the power source supply controller.
Claims16
A direct current (DC) voltage generating circuit for reducing an electric power consumption in a semiconductor memory device, comprising:
- refresh counter for timing a refresh cycle;
- a power source supply controller for logically combining a counting value supplied from said refresh counter and a self-refresh timer driving signal, thereby to generate a power source supply control signal in a cell refresh section;
- a DC voltage generator for generating and supplying a DC voltage through an output terminal thereof under the control of said power source supply control signal supplied from said power source supply controller;
- and
- a level converter for supplying the complement of said power source supply control signal to said DC voltage generator.
A DC voltage generating circuit for reducing an electric power consumption in a semiconductor memory device, including a refresh counter for timing a refresh cycle, said DC voltage generating circuit comprising:
- a power source supply controller for logically combining a counting value supplied from said refresh counter with a self-refresh timer driving signal, thereby to generate a power source supply control signal during a cell refresh period;
- switching means for performing a switching operation in order to supply a power source voltage in correspondence with said power source supply control signal supplied from said power source supply controller;
- and
- DC voltage generation circuitry for generating a DC voltage responsive to said power source voltage supplied by the switching operation of said switching means.
Dependencies are inferred from the claim text.