An 80 mV Startup Dual-Mode Boost Converter by Charge-Pumped Pulse Generator and Threshold Voltage Tuned Oscillator With Hot Carrier Injection

作者：Chen Po Hung^*; Zhang Xin; Ishida Koichi; Okuma Yasuyuki; Ryu Yoshikatsu; Takamiya Makoto; Sakurai Takayasu

来源：IEEE Journal of Solid-State Circuits, 2012, 47(11): 2554-2562.

DOI：10.1109/JSSC.2012.2210953

• Charge-pumped pulse generator
• dual-mode boost converter
• energy harvesting
• hot carrier injection
• low voltage
• startup
• V-TH-tuned oscillator

This paper presents an 80 mV startup-voltage dual-mode boost converter for energy harvesting applications. The charge-pumped pulse generator enables a startup operation of the boost converter from the input voltage of 80 mV. The threshold voltage tuned oscillator for the clock generator of the boost converter compensates for the die-to-die process variation by a hot carrier injection (HCI), thereby reducing the minimum operation voltage (V-DDMIN) of the clock generator by 45% with a trimming time of 10 minutes. The proposed step-up converter achieves the lowest startup voltage without using a mechanical switch or a large transformer.

• 出版日期2012-11