Dominic Maurath
ABSTRACT
This paper presents a novel analog delay-line based puls-width modulation controller with temperature compensation. All circuits are designed in a standard 0.35 μm CMOS twin well process. The resented voltage reference provides a supply and temperature independent output voltage of 250 mV. In addition, a ring oscillator is introduced which utilizes bulk-modulated pMOS transistors. All circuits operate within a temperature range of −20 °C to +120 °C, and a supply voltage of down to 0.5 V. The oscillator's frequency is 1.3 MHz ± 45 kHz, the total power consumption is 15 μW at 0.5 V.
- V. Pop, J. van de Molgenkraft, F. Schnitzler, J. Penders R. van Schaijk, R. Vullers, Power Optimization for Wireless Autonomous Transducer Solutions, Proc. PowerMEMS 2008, Sendai, Japan, 2008, pp. 141--144.Google Scholar
- T.Y. Man, P. Mok, M.J. Chan, A 0.9-V Input Discontinuous-Conduction-Mode Boost Converter With CMOS-Control Rectifier, IEEE J. of Solid-State Circuits, vol. 44, no. 9, pp. 2036--2046, Sept. 2008.Google ScholarCross Ref
- V. Yousefzadeh, T. Takayama, D. Maksimovi, Hybrid DPWM with Digital Delay-Locked Loop, IEEE COMPEL 2006, Troy (USA), pp. 142--148.Google Scholar
- A. Dejmouai, M. Sawan, M. Slamani, New CMOS Integrated Pulse Width Modulator for Voltage Conversion Applications, 7th IEEE ICECS, vol. 1, pp. 116--119, Dec. 2000.Google Scholar
- A. Chatterjee, Y. Tsividis, P. Kinget, 0.5-V Analog Circuit Techniques and Their Application in OTA and Filter Design, IEEE Journal of Solid State Circuits, vol. 40, no. 12, pp. 2373--2387, 2005.Google ScholarCross Ref
- D. Maurath, F. Michel, M. Ortmanns, Y. Manoli, A 0.5V Rail-to-Rail 1.5 μW CMOS Amplifier for Micro-Energy Harvesting Applications, Proc. IEEE MWSCAS 2008, Knoxville, USA, 2008.Google Scholar
- P.R. Gray, P.J. Hurst, S.H. Lewis, R.G. Meyer, Analysis and Design of Analog Integrated Circuits, 4th ed. NY, Wiley, 2001. Google ScholarDigital Library
- E. Vittoz, J. Fellrath, CMOS analog integrated circuits based on weak inversion operation, IEEE Journal of Solid State Circuits, vol. SC-12, pp. 224--231, June 1977.Google ScholarCross Ref
- Po-Hsuan Huang, Hongchin Lin, Yen-Tai Lin, A Simple Subthreshold CMOS Voltage Reference Circuit With Channel-Length Modulation Compensation, IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 53, no. 9, pp. 882--885, Sept. 2006.Google ScholarCross Ref
- G. Giustolisi, G. Palumbo, M. Criscione, F. Cutrì, A low-voltage low-power voltage reference based on subthreshold MOSFETs, IEEE J. of Solid-State Circuits, vol. 38, no. 1, pp. 151--154, Jan. 2003.Google ScholarCross Ref
- B. Datta, W. Burleson, Low-power and robust on-chip thermal sensing using differential ring oscillators, Proc. IEEE MWSCAS 2007, Montréal, Canada, pp. 29--32.Google Scholar
Index Terms
- A novel 0.5 V 15 μW 1.3 MHz temperature-compensated analog PWM-controller for switch-mode converters
Recommendations
A 0.7-V, 8.9-$$\upmu \hbox {A}$$μA compact temperature-compensated CMOS subthreshold voltage reference with high reliability
This paper focuses on the study of a compact tem-perature-compensated CMOS voltage reference (VR) with high reliability. The temperature coefficient (TC) of the gate-source voltage for a subthreshold NMOSFET has been derived and utilized to perform ...
A 0.75-V, 4-µW, 15-ppm/źC, 190źC temperature range, voltage reference
A low-voltage, low-power, low-area, wide-temperature-range CMOS voltage reference is presented. The proposed reference circuit achieves a measured temperature drift of 15ppm/ï źC for an extremely wide temperature range of 190ï źC -60 to 130ï źC while ...
Two-switch flyback PWM DC–DC converter in discontinuous-conduction mode
The two-switch flyback DC–DC converter is an extended version of the conventional single-switch flyback converter. An additional switch and two clamping diodes serve as a simple, but an effective way to limit the switch overvoltages, which occur in the ...
Comments