Design of a floating node voltage-controlled linear variable resistor circuit

Kushima, Muneo; Inaba, Masamitsu; Tanno, Koichi; Ishizuka, Okihiko

doi:10.1109/mwscas.2004.1353903

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…The transistor that operates in the triode region replaces a physical resistor to reduce silicon area. In conventional design, the source-drain voltage of the transistor induces variations in resistance value [21]. and can determine the resistance that is independent of this voltage according to the value of .…”

Section: B Error Amplifier and Fast Transient Unitmentioning

confidence: 99%

Single-Inductor Quad-Output Switching Converter With Priority-Scheduled Program for Fast Transient Response and Unlimited Load Range in 40 nm CMOS Technology

Chen

Huang

et al. 2015

IEEE J. Solid-State Circuits

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System-on-a-chip (SoC) applications require multiple power supply voltages with the features of low noise for analog circuits and high efficiency for digital circuits. Thus, this paper proposes the priority-scheduled program (PSP) for the single-inductor quad-output (SIQO) switching converter. This technique manages energy delivery to multiple outputs, facilitates fast transient response, and reduces cross-regulation simultaneously. Moreover, a level bypass detector (LBD) is used to overcome the limitation of significant loading differences among quad outputs in conventional designs because the PSP technique cantransfer additional energy to low-priority outputs to avoid overshoot voltage at high-priority outputs. Furthermore, voltage disturbance can be filtered out using two additional low-dropout regulators that operate as buffers cascaded at two low-priority outputs. Therefore, the SIQO converter that is fabricated in 40 nm CMOS technology satisfies the power requirements in portable electronics given its low cross-regulation of 0.2%, fast transient response of 15 s, and an output voltage ripple that is smaller than 30 mV. Index Terms-Cross-regulation, fast transient, level bypass detector (LBD), priority-scheduled program (PSP), single-inductor quad-output (SIQO).0018-9200

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Section: B Error Amplifier and Fast Transient Unitmentioning

confidence: 99%

Single-Inductor Quad-Output Switching Converter With Priority-Scheduled Program for Fast Transient Response and Unlimited Load Range in 40 nm CMOS Technology

Chen

Huang

et al. 2015

IEEE J. Solid-State Circuits

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“…In this paper, a reconfigurable switched‐capacitor (SC) resistor that can be used for the shunt proximity touch sensor readout circuit is proposed. With the proposed scheme, the resistor can be control from 23 to 166 kΩ, which shows a wider range compared to conventional variable resistors .…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, a reconfigurable switched-capacitor (SC) resistor that can be used for the shunt proximity touch sensor readout circuit is proposed. With the proposed scheme, the resistor can be control from 23 to 166 kX, which shows a wider range compared to conventional variable resistors [4][5][6]. Figure 1 shows the concept of the shunt proximity touch sensing technology, which includes the touch pattern, reconfigurable reference resistor Z REF , and detection block.…”

Section: Introductionmentioning

confidence: 99%

Paper No P40: A Reconfigurable Switched‐Capacitor Resistor for Proximity Touch Sensor Readout Circuits

Lee

Asgari

Lee

2013

Symp Digest of Tech Papers

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This work describes a reconfigurable parasitic insensitive switched-capacitor resistor for proximity touch sensor readout circuits. In this scheme, the conventional programmable resistor bank array is replaced with a switched-capacitor resistor where the resistance is reconfigured by varying the control clock frequency. Furthermore, the control clock is generated by a simple current source and capacitor based time-mode oscillator that reduces the area of the readout circuitry. The proposed touch sensor readout circuit is implemented using CMOS 0.35 mm technology with supply voltage of 3.3 V.

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Digitally Controlled Reference Impedance Device for Test and Calibration of the Bio-Impedance Measurement System (BIMS) in a Networked Environment

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Design of a floating node voltage-controlled linear variable resistor circuit

Cited by 6 publications

References 4 publications

Single-Inductor Quad-Output Switching Converter With Priority-Scheduled Program for Fast Transient Response and Unlimited Load Range in 40 nm CMOS Technology

Single-Inductor Quad-Output Switching Converter With Priority-Scheduled Program for Fast Transient Response and Unlimited Load Range in 40 nm CMOS Technology

Paper No P40: A Reconfigurable Switched‐Capacitor Resistor for Proximity Touch Sensor Readout Circuits

Digitally Controlled Reference Impedance Device for Test and Calibration of the Bio-Impedance Measurement System (BIMS) in a Networked Environment

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