Circuit for generating internal power voltage in a semiconductor device
AssigneeHynix Semiconductor Inc.
InventorDong Keum Kang
Life of this patent
Estimating the term…
Abstract
A circuit for generating internal power voltage comprising: a comparison unit for comparing reference voltage and internal voltage; a buffer unit, its input terminal comprising CMOS inverters, for buffering an output signal of the comparison unit; a buffer control unit for controlling current flowing through the CMOS inverters of the buffer unit less than a predetermined amount in regular operations and for controlling current flowing through the CMOS inverters of the buffer unit more than a predetermined amount in active operation; a first current supply unit for supplying current according to an output signal of the buffer unit; and a load unit for generating internal voltage by current supply from the first current supply unit.
Claims11
A circuit in a semiconductor device for generating internal power voltage comprising:
- a comparison unit for comparing reference voltage and internal voltage;
- a buffer unit comprising a CMOS inverter for buffering the output signal of the comparison unit;
- a buffer control unit for controlling power consumption and response speed of the circuit by controlling the current flowing through a foremost CMOS inverter in the buffer unit during a regular operation and also by controlling the current flowing through the foremost CMOS inverter during an active operation;
- a gate bias unit for supplying a constant voltage source to the buffer unit in operations other than the active operation;
- a first current supply unit for supplying current according to the output signal of the buffer unit;
- a second current supply unit for supplying current to the load unit according to the output signal of the comparison unit;
- and
- a load unit for generating internal voltage by drawing on the current from at least one of the first and second current supply units.
The circuit for generating internal power voltage comprising:
- a comparison unit for comparing a reference voltage and an internal voltage;
- a first current supply unit for supplying external voltage to the internal voltage according to an output signal of the comparison unit;
- a buffer unit for buffering the output signal of the comparison unit and for outputting the result;
- a pulse generation unit for increasing the current driving force of the buffer unit for a predetermined time during active operation;
- a gate bias unit for transforming the voltage source supplied to the buffer unit into a constant voltage source in operations other than active operation;
- a second current supply unit for supplying the external voltage to the internal voltage according to the output signal of the buffer unit;
- and
- a load circuit unit, connected between the internal voltage and ground voltage, for consuming the internal voltage.
Dependencies are inferred from the claim text.