A Novel Electronically Controllable of Current-mode Level Shifted Multicarrier PWM Based on MO-CFTA
Alternative metrics PlumXhttp://hdl.handle.net/11012/36943
MetadataShow full item record
This paper proposes the application of an electronically controlled current-mode for a level shifted multicarrier PWM generator. The proposed circuit consists of two multiple-output current follower transconductance amplifiers (MO-CFTAs) for the multiple-output triangular generator and four current follower transconductance amplifiers (CFTAs) for the signal comparator. The characteristics of the circuit are as follows: the current output can be controlled by bias current, the maximum amplitude deviation due to temperature variation is less than 1.37% and the power consumption is approximately 0.744 microwatt, at ±1.5V supply voltages. The proposed PWM has been verified through PSpice simulation results which are in consistent with the theoretical analysis.
Document typePeer reviewed
SourceRadioengineering. 2013, vol. 22, č. 3, s. 907-915. issn 1210-2512
- 2013/3