A Programmable CMOS Voltage Controlled Ring Oscillator for Radio-Frequency Diathermy On-chip Circuit
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Fecha
2017-06
Autores
Corres-Matamoros, Antonio
Martínez-Guerrero, Esteban
Rayas-Sánchez, José E.
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Editor
IEEE
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Descripción
In this work we present the design of a digitally controlled ring type oscillator in 0.5 μm CMOS technology for a low-cost and portable radio-frequency diathermy (RFD) device. The oscillator circuit is composed by a low frequency ring oscillator (LFRO), a voltage controlled ring oscillator (VCRO), and a logic control. The digital circuit generates an input signal for the LFO, which generates a voltage ramp that controls the oscillating output signal of the VCRO in the range of 100 KHz to 1 MHz. Simulation results show that the proposed circuit exhibits controllable output characteristics in the range of 100 KHz – 1 MHz, with low power consumption and low phase noise, making it suitable for a portable RFD device.
Palabras clave
Low-frequency Oscillator, Voltage-controlled Oscillator, Ring Oscillator, Radio-frequency Diathermy, RFD
Citación
A. Corres-Matamoros, E. Martínez-Guerrero and J. E. Rayas-Sanchez, "A programmable CMOS voltage controlled ring oscillator for radio-frequency diathermy on-chip circuit," 2017 International Caribbean Conference on Devices, Circuits and Systems (ICCDCS), Cozumel, 2017, pp. 65-68. doi: 10.1109/ICCDCS.2017.7959721