Title :
On-chip current sensing techniques for hysteresis current controlled DC-DC converters
Author :
Chen, J.-J. ; Lin, Y.-T. ; Lin, H.-Y. ; Su, J.-H. ; Chung, W.-Y. ; Hwang, Y.-S. ; Tseng, C.-L.
Author_Institution :
Dept. of Electron. Eng., Nat. Taipei Univ. of Technol., Taiwan
Abstract :
An on-chip current sensing technique for a hysteresis current controlled step-down DC-DC converter is presented. This current sensing technique has been designed with standard 0.35 μm CMOS 2P4M processes. Experimental results show that the current sensing circuit measures full-time the inductor current whether the high-side or low-side switch is turned on.
Keywords :
CMOS integrated circuits; DC-DC power convertors; current-mode circuits; hysteresis; 0.35 micron; CMOS process; current sensing circuit; high-side switch; hysteresis current controlled step-down DC-DC converters; inductor current; low-side switch; on-chip current sensing method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20056807
