An SET-Free, All-Digital Controlled Point-of-Load Regulator for Next-Generation Power Systems: ADC-POL

This paper presents a digitally controlled programmable point-of-load regulator for next-generation power systems. A novel digital control scheme was designed to minimize single-event effect (SEE)-induced transient effects. By effectively programming the loop transmission, the POL can trade off transient response time with SET robustness. The IC works with 1 to 5.5 V input voltage, 1-4.5V regulated output voltage, high efficiency (peak efficiency at 94%) and power of up to 5 W. The design was fabricated in the AMI i2t100 0.7 μm complimentary, metal-oxide semiconductor (CMOS) process and characterized with the Jet Propulsion Laboratory (JPL) pulsed laser system.

[1]  P. C. Adell,et al.  Analysis of single-event transients in analog circuits , 2000 .

[2]  Tao Liu,et al.  A digitally controlled DC-DC buck converter with lossless load-current sensing and BIST functionality , 2011, 2011 IEEE International Solid-State Circuits Conference.

[3]  P. C. Adell,et al.  Total-dose and single-event effects in DC/DC converter control circuitry , 2003 .

[4]  N. W. van Vonno,et al.  Total Dose and Single Event Testing of a Hardened Point of Load Regulator , 2010, 2010 IEEE Radiation Effects Data Workshop.

[5]  Kevin M. Warren,et al.  Single event testing of DC/DC converters for space flight , 2002, IEEE Radiation Effects Data Workshop.

[6]  V. Pouget,et al.  Total Dose and Single Event Transients in Linear Voltage Regulators , 2005, 2005 8th European Conference on Radiation and Its Effects on Components and Systems.

[7]  J.S. Laird,et al.  Single-Event Transients in Voltage Regulators , 2006, IEEE Transactions on Nuclear Science.

[8]  V. Pouget,et al.  Investigation of Single-Event Transients in Linear Voltage Regulators , 2008, IEEE Transactions on Nuclear Science.

[9]  Kenneth A. LaBel,et al.  Implications of single event effect characterization of hybrid DC-DC converters and a solid state power controller , 1995 .

[10]  W T Holman,et al.  Digital Control for Radiation-Hardened Switching Converters in Space , 2010, IEEE Transactions on Aerospace and Electronic Systems.

[11]  P. Calvel,et al.  Total dose and heavy ions evaluation of UC1806 pulse width modulator from Unitrode , 1995, Proceedings of 1995 IEEE Nuclear and Space Radiation Effects Conference (NSREC'95).

[12]  P. C. Adell,et al.  Total-dose and single-event effects in switching DC/DC power converters , 2002 .