Voltage supply circuit and semiconductor memory
First Claim
1. A method of generating a voltage at an output node, comprising:
- activating a first driving circuit, in a first mode and a second mode, to supply a high voltage to the output node when the voltage is lower than a first voltage and to supply a low voltage to the output node when the voltage is higher than a second voltage; and
activating a second driving circuit, in the second mode, to supply the high voltage to the output node when the voltage is lower than the first voltage and to supply the low voltage to the output node when the voltage is higher than the second voltage.
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Accused Products
Abstract
Each of first and second differential amplifiers has a function of increasing a bias current in response to the activation of a drivability control signal. A first driving circuit connects an output node to a high power supply line in response to the activation of an output signal of the first differential amplifier, and connects the output node to a low power supply line in response to the activation of an output signal of the second differential amplifier. Only during the activation period of the drivability control signal, a second driving circuit connects the output node to the high power supply line in response to the activation of the output signal of the first differential amplifier, and connects the output node to the low power supply line in response to the activation of the output signal of the second differential amplifier.
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Citations
12 Claims
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1. A method of generating a voltage at an output node, comprising:
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activating a first driving circuit, in a first mode and a second mode, to supply a high voltage to the output node when the voltage is lower than a first voltage and to supply a low voltage to the output node when the voltage is higher than a second voltage; and activating a second driving circuit, in the second mode, to supply the high voltage to the output node when the voltage is lower than the first voltage and to supply the low voltage to the output node when the voltage is higher than the second voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of generating a voltage at output node to supply the voltage to a circuit, comprising:
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supplying a high voltage to an output node via a first path when detecting that the voltage is lower than a first voltage; supplying a low voltage to the output node via a second path when detecting that the voltage is higher than a second voltage; supplying the high voltage to the output node via a third path, which is different from the first path, when detecting that the voltage is lower than a first voltage; and supplying the low voltage to the output node via the fourth path, which is different from the third path, when detecting that the voltage is higher than a second voltage, wherein the first path and the second path are used in a first mode and a second mode, wherein the third mode and the fourth mode are used in the second mode. - View Dependent Claims (9, 10, 11, 12)
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Specification