PERIOD SIGNAL GENERATION CIRCUITS
First Claim
1. A period signal generation circuit, the circuit comprising:
- a control voltage generator configured to select one of plurality of temperature-dependent voltages to output the selected temperature-dependent voltage as a control voltage; and
a period controller configured to determine an amount of a current discharging from an internal node in response to the control voltage and to output a periodic signal having a cycle time that is determined according to a level of an internal signal induced at the internal node.
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Accused Products
Abstract
A period signal generation circuit including a control voltage generator and a period controller. The control voltage generator selecting one of temperature-dependent voltages to output the selected temperature-dependent voltage as a control voltage. The first and second temperature-dependent voltages varying according to a temperature and the third temperature-dependent voltage is constant regardless of variation of the temperature. The period controller configured to determine an amount of a current discharging from an internal node in response to the control voltage and outputs a periodic signal whose cycle time is determined according to a level of an internal signal induced at the internal node.
8 Citations
28 Claims
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1. A period signal generation circuit, the circuit comprising:
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a control voltage generator configured to select one of plurality of temperature-dependent voltages to output the selected temperature-dependent voltage as a control voltage; and a period controller configured to determine an amount of a current discharging from an internal node in response to the control voltage and to output a periodic signal having a cycle time that is determined according to a level of an internal signal induced at the internal node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A period signal generation circuit, the circuit comprising:
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a drive voltage generator configured to select one of plurality of temperature-dependent voltages to output the selected temperature-dependent voltage as a drive voltage; a discharger configured to discharge charges of an internal node; a level detector configured to compare an internal signal induced at the internal node with a reference voltage to determine a logic level of a periodic signal; and a driver configured to drive a level of the internal node to the drive voltage in response to the periodic signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A period signal generation circuit, the circuit comprising:
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a discharger configured to discharge charges of an internal node in response to a bias voltage; a reference voltage generator configured to select one of plurality of temperature-dependent voltages to output the selected temperature-dependent voltage as a reference voltage; a level detector configured to compare an internal signal induced at the internal node with the reference voltage to determine a logic level of a periodic signal; and a driver configured to drive the internal node in response to the periodic signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification