Power Supply Shunt
AssigneeRambus Inc.
InventorJohn Wood Poulton
Life of this patent
Estimating the term…
Abstract
A power supply shunt for an electronic circuit. The power supply shunt includes at least two Field Effect Transistors (FETs), a first of the FETs having its drain coupled to a terminal of an electronic circuit and its source coupled to another of the FETs, and a second of the FETs having its source coupled to ground and its drain coupled to another of the FETs. The first FET has a bulk terminal that floats with respect to ground.
Claims22
A power supply shunt, comprising:
- Field Effect Transistors (FETs) connected in series between a power supply terminal and a ground terminal of an electronic circuit, a first of said FETs electrically isolated from the ground terminal and having its drain connected to the power supply terminal, a second of said FETs having its source coupled to the ground terminal;
- a first inverter circuit and a second inverter circuit, the first inverter circuit to apply an inverted signal between gate and source of the first of said FETs, the second inverter circuit to apply an inverted power supply between gate and the source of the second of said FETs;
- and
- a capacitor coupled to inputs of the first and the second inverter circuits.
A power supply shunt, comprising:
- Field Effect Transistors (FETs) connected in series between a power supply terminal and a ground terminal of an electronic circuit, a first of the FETs isolated from the ground terminal, and having its drain connected to the power supply terminal;
- means for storing charge received from the power supply terminal;
- and
- means for inverting a signal from the means for storing charge to apply a first inverted signal between gate and source of the first of the FETs, and for inverting the signal from the means for storing charge to apply a second inverted signal between gate and source of a second of the of FETs.
A non-transitory information-bearing medium having non-transitory computer-readable information thereon, the non-transitory computer-readable information describing a power supply shunt, comprising:
- Field Effect Transistors (FETs) connected in series between a power supply terminal and a ground terminal of an electronic circuit, a first of the FETs electrically isolated from the ground terminal and having its drain coupled to the power supply terminal, a second of the FETs having its source coupled to the ground terminal;
- a first inverter circuit and a second inverter circuit, first inverter circuit to apply an inverted signal to a gate of the first of the FETs, the second inverter circuit to apply an inverted signal to a gate of the second of the FETs, inputs of the first inverter circuit and the second inverter circuit coupled to the power supply terminal of the electronic circuit;
- and
- a capacitor coupled to the inputs of the first and the second inverter circuits.
An integrated circuit, comprising:
- a substrate;
- a power supply shunt including Field Effect Transistors (FETs) connected in series between a power supply terminal and a ground terminal of an electronic circuit, a first of the FETs electrically isolated from the substrate and having its drain connected to the power supply terminal, a second of the FETs having its source connected to the ground terminal;
- a first inverter circuit and a second inverter circuit, the first inverter circuit to apply an inverted signal between gate and source of the first of the FETs, the second inverter circuit to apply an inverted signal between gate and source of the second of the FETs;
- and
- a capacitor coupled to inputs of the first and the second inverter circuits.
Dependencies are inferred from the claim text.