Abstract
This paper proposes a new addressing method for high-efficiency switching-capacitor DC-DC voltage converter based on combination of CTS (charge-transfer-switch) charge pump and cross-coupled output stage is proposed in order to get a high output power and pump-efficiency. By using three level addressing methods, it can increase both of pump-efficiency and power-efficiency. The proposed three level addressing mixed-structure charge pump can operate at as high as 1MHz switching-frequency on the 0.1 μF pump-capacitors. Simulation by using HSPICE level 3 model shows that our work can convert the input low DC-voltage (Vin=1.5V) up near to 11.26 times of it (VOUT=16.9V), so that more output power can be generated with a little power loss. The newly proposed addressing method for DC-DC charge pump circuit is suitable for various low-voltage applications.
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