Details
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE International Solid-State Circuits Conference, ISSCC 2019 |
| Pages | 156-158 |
| Number of pages | 3 |
| ISBN (electronic) | 978-1-5386-8531-0 |
| Publication status | Published - 6 Mar 2019 |
| Event | 2019 IEEE International Solid- State Circuits Conference - (ISSCC) - San Fransisco, United States Duration: 17 Feb 2019 → 21 Feb 2019 |
Publication series
| Name | Digest of Technical Papers - IEEE International Solid-State Circuits Conference |
|---|---|
| Volume | 2019-February |
| ISSN (Print) | 0193-6530 |
| ISSN (electronic) | 2376-8606 |
Abstract
DC-DC converters for applications like wearables require an ultra-compact and flat module size. Hybrid converters are a promising converter class that supports integration of inductive and capacitive components, while minimizing losses and improving power density. Since many of these applications are often in sleep mode, high efficiency has to be achieved from high to low output power. Fully integrated 3-level buck converters [1, 2] do not maintain good efficiency over the full load range, since they operate at high switching frequencies, required for inductive PWM operation with small inductors. The converter in [3] achieves better efficiencies, but has a small conversion ratio. Resonant SC converters [4, 5] reach high efficiencies due to lower switching frequencies and better passive component utilization. However, low-power operation is not supported [1, 3-5] or it suffers from low efficiencies [2]. Moreover, only [4] supports a wide input voltage range based on mixed inductive and resonant operation, but still has an efficiency drop over varying input voltages. Hybrid converters, combining an SC cell with an external LC output filter, operated with inductive PWM control [6], achieve high efficiencies over wide input voltage, but they do not support low power operation.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Engineering(all)
- Electrical and Electronic Engineering
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2019 IEEE International Solid-State Circuits Conference, ISSCC 2019. 2019. p. 156-158 8662491 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 2019-February).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - A Fully Integrated 85%-Peak-Efficiency Hybrid Multi Ratio Resonant DC-DC Converter with 3.0-to-4.5V Input and 500μA -to-120mA Load Range
AU - Renz, Peter
AU - Kaufmann, Maik
AU - Lueders, Michael
AU - Wicht, Bernhard
PY - 2019/3/6
Y1 - 2019/3/6
N2 - DC-DC converters for applications like wearables require an ultra-compact and flat module size. Hybrid converters are a promising converter class that supports integration of inductive and capacitive components, while minimizing losses and improving power density. Since many of these applications are often in sleep mode, high efficiency has to be achieved from high to low output power. Fully integrated 3-level buck converters [1, 2] do not maintain good efficiency over the full load range, since they operate at high switching frequencies, required for inductive PWM operation with small inductors. The converter in [3] achieves better efficiencies, but has a small conversion ratio. Resonant SC converters [4, 5] reach high efficiencies due to lower switching frequencies and better passive component utilization. However, low-power operation is not supported [1, 3-5] or it suffers from low efficiencies [2]. Moreover, only [4] supports a wide input voltage range based on mixed inductive and resonant operation, but still has an efficiency drop over varying input voltages. Hybrid converters, combining an SC cell with an external LC output filter, operated with inductive PWM control [6], achieve high efficiencies over wide input voltage, but they do not support low power operation.
AB - DC-DC converters for applications like wearables require an ultra-compact and flat module size. Hybrid converters are a promising converter class that supports integration of inductive and capacitive components, while minimizing losses and improving power density. Since many of these applications are often in sleep mode, high efficiency has to be achieved from high to low output power. Fully integrated 3-level buck converters [1, 2] do not maintain good efficiency over the full load range, since they operate at high switching frequencies, required for inductive PWM operation with small inductors. The converter in [3] achieves better efficiencies, but has a small conversion ratio. Resonant SC converters [4, 5] reach high efficiencies due to lower switching frequencies and better passive component utilization. However, low-power operation is not supported [1, 3-5] or it suffers from low efficiencies [2]. Moreover, only [4] supports a wide input voltage range based on mixed inductive and resonant operation, but still has an efficiency drop over varying input voltages. Hybrid converters, combining an SC cell with an external LC output filter, operated with inductive PWM control [6], achieve high efficiencies over wide input voltage, but they do not support low power operation.
UR - http://www.scopus.com/inward/record.url?scp=85063438953&partnerID=8YFLogxK
U2 - 10.1109/isscc.2019.8662491
DO - 10.1109/isscc.2019.8662491
M3 - Conference contribution
SN - 978-1-5386-8532-7
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 156
EP - 158
BT - 2019 IEEE International Solid-State Circuits Conference, ISSCC 2019
T2 - 2019 IEEE International Solid- State Circuits Conference - (ISSCC)
Y2 - 17 February 2019 through 21 February 2019
ER -