TY - GEN
T1 - Adiabatic charging of capacitors by switched capacitor converters with multiple target voltages
AU - Chernichenko, Dmitry
AU - Kushnerov, Alexander
AU - Sam, Ben Yaakov
PY - 2012/12/1
Y1 - 2012/12/1
N2 - A method for adiabatic charging of a capacitor by Switched Capacitor Converters (SCC) with multiple target voltages is presented, analyzed and verified experimentally. The SCC automatically changes the target voltages from low to high and back, thereby emulating voltage steps. This reduces the energy losses due to small voltage deviations between the SCC output and the charged capacitor and by enabling the stored energy to be recovered back into the power supply. In comparison with the previous method a considerable economy in hardware is achieved by replacing a set of voltage sources by a single SCC. It is shown that the voltage source and the switch resistance in the regular charging circuit can be emulated by the SCC equivalent circuit. Furthermore, such emulation provides the same step response if the SCC is operated close to the no-charge (NC) mode. This theoretical prediction was approved experimentally using the binary SCC.
AB - A method for adiabatic charging of a capacitor by Switched Capacitor Converters (SCC) with multiple target voltages is presented, analyzed and verified experimentally. The SCC automatically changes the target voltages from low to high and back, thereby emulating voltage steps. This reduces the energy losses due to small voltage deviations between the SCC output and the charged capacitor and by enabling the stored energy to be recovered back into the power supply. In comparison with the previous method a considerable economy in hardware is achieved by replacing a set of voltage sources by a single SCC. It is shown that the voltage source and the switch resistance in the regular charging circuit can be emulated by the SCC equivalent circuit. Furthermore, such emulation provides the same step response if the SCC is operated close to the no-charge (NC) mode. This theoretical prediction was approved experimentally using the binary SCC.
UR - http://www.scopus.com/inward/record.url?scp=84871967731&partnerID=8YFLogxK
U2 - 10.1109/EEEI.2012.6377012
DO - 10.1109/EEEI.2012.6377012
M3 - Conference contribution
AN - SCOPUS:84871967731
SN - 9781467346801
T3 - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
BT - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
T2 - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
Y2 - 14 November 2012 through 17 November 2012
ER -