In this paper,a decoupling equalization control strategy based on complex coupled inductors is proposed to address the control difficulties caused by compound coupled inductors in the interleaved-parallel triple-coupl...In this paper,a decoupling equalization control strategy based on complex coupled inductors is proposed to address the control difficulties caused by compound coupled inductors in the interleaved-parallel triple-coupled inductor-based boost converter(IP-TCIBC).First,the phase inductors are uncoupled from the output filter inductors by analyzing the decoupling and denationalizing the conductance matrices of the phase inductors to realize the phase inductor decoupling.The control block diagram is simplified by correcting the independent current inner loops of the two phases to identical type I systems,based on which the voltage-current dual closed-loop control is realized by adding a common voltage outer loop and rectifying it to a type II system.MATLAB/Simulink builds the closed-loop equalization control model,and the simulation verification shows that:under the proposed control strategy,the two-phase inductor currents are completely equal,the equalization effect is good and stable,and it is not affected by the disturbance of sudden change of internal resistance.The system has strong anti-interference ability,the voltage and current response is rapid during the sudden change of the load,and the dynamic performance is superior;the output voltage is stable,the overshooting amount is small,and the recovery time is fast.The results verify the correctness and effectiveness of the control strategy and provide new ideas and methods for solving the complex coupled inductor equalization control problems in DC-DC converters.展开更多
An improved single-π equivalent circuit model for on-chip inductors in the GaAs process is presented in this paper. Considering high order parasites, the model is established by comprising an improved skin effect bra...An improved single-π equivalent circuit model for on-chip inductors in the GaAs process is presented in this paper. Considering high order parasites, the model is established by comprising an improved skin effect branch and a substrate lateral coupling branch. The parameter extraction is based on an improved characteristic function approach and vector fitting method. The model has better simulation than the previous work over the measured data of 2.5r and 4.5r on-chip inductors in the GaAs process.展开更多
A small signal coupling model is developed to analyze the coupling between two LNAs. The mutual inductance between the adjacent on-chip inductors is considered responsible for this coupling. A set of formulas have bee...A small signal coupling model is developed to analyze the coupling between two LNAs. The mutual inductance between the adjacent on-chip inductors is considered responsible for this coupling. A set of formulas have been derived to quantitatively predict the coupling effects. Based on our analysis, a quick estimation can be made to see which pair of inductors plays a key role in evaluating the coupling between the LNAs. Source inductors of two LNAs are placed closely while the load inductors are far apart according to the analysis. To validate the proposed theory, two 2 GHz LNAs are fabricated. The LNAs have a peak gain of 18 dB and NF of 1.4 dB. The coupling between the LNAs is –30 dB.展开更多
A high-boost interleaved DC-DC converter that utilizes coupled inductors and voltage multiplier cells(VMC)is proposed in this paper.The input power supply connects to switches through the primary sides of two coupling...A high-boost interleaved DC-DC converter that utilizes coupled inductors and voltage multiplier cells(VMC)is proposed in this paper.The input power supply connects to switches through the primary sides of two coupling inductors with an interleaved structure,which reduces the voltage stresses of the switches and lowers the input current ripple.Two capacitors and a diode are placed in series on the secondary side of the coupled inductors to enhance the high boost capability.The implementation of maximum power point tracking(MPPT)is facilitated by the simplification of the control system through common ground.To verify the effectiveness of the proposed converter,an experimental platform and a prototype based on a turns ratio of 1 are presented.The test results show that the voltage stresses on the switches are only 1/8 of the output voltage.The operating principle and design guidelines of the proposed converter are described in detail.The experimental results show that the converter is efficient and stable over a wide power range.展开更多
基金the National Natural Science Foundation of China under Grant 52277204.
文摘In this paper,a decoupling equalization control strategy based on complex coupled inductors is proposed to address the control difficulties caused by compound coupled inductors in the interleaved-parallel triple-coupled inductor-based boost converter(IP-TCIBC).First,the phase inductors are uncoupled from the output filter inductors by analyzing the decoupling and denationalizing the conductance matrices of the phase inductors to realize the phase inductor decoupling.The control block diagram is simplified by correcting the independent current inner loops of the two phases to identical type I systems,based on which the voltage-current dual closed-loop control is realized by adding a common voltage outer loop and rectifying it to a type II system.MATLAB/Simulink builds the closed-loop equalization control model,and the simulation verification shows that:under the proposed control strategy,the two-phase inductor currents are completely equal,the equalization effect is good and stable,and it is not affected by the disturbance of sudden change of internal resistance.The system has strong anti-interference ability,the voltage and current response is rapid during the sudden change of the load,and the dynamic performance is superior;the output voltage is stable,the overshooting amount is small,and the recovery time is fast.The results verify the correctness and effectiveness of the control strategy and provide new ideas and methods for solving the complex coupled inductor equalization control problems in DC-DC converters.
基金Project supported by the National Natural Science Foundation of China(No.61674036)
文摘An improved single-π equivalent circuit model for on-chip inductors in the GaAs process is presented in this paper. Considering high order parasites, the model is established by comprising an improved skin effect branch and a substrate lateral coupling branch. The parameter extraction is based on an improved characteristic function approach and vector fitting method. The model has better simulation than the previous work over the measured data of 2.5r and 4.5r on-chip inductors in the GaAs process.
基金supported by the National Natural Science Foundation of China(No.61401025)
文摘A small signal coupling model is developed to analyze the coupling between two LNAs. The mutual inductance between the adjacent on-chip inductors is considered responsible for this coupling. A set of formulas have been derived to quantitatively predict the coupling effects. Based on our analysis, a quick estimation can be made to see which pair of inductors plays a key role in evaluating the coupling between the LNAs. Source inductors of two LNAs are placed closely while the load inductors are far apart according to the analysis. To validate the proposed theory, two 2 GHz LNAs are fabricated. The LNAs have a peak gain of 18 dB and NF of 1.4 dB. The coupling between the LNAs is –30 dB.
基金supported in part by the National Natural Science Foundation of China(No.52377088)in part by the Central Government Guiding Local Science and Technology Development Project(No.2021L3005).
文摘A high-boost interleaved DC-DC converter that utilizes coupled inductors and voltage multiplier cells(VMC)is proposed in this paper.The input power supply connects to switches through the primary sides of two coupling inductors with an interleaved structure,which reduces the voltage stresses of the switches and lowers the input current ripple.Two capacitors and a diode are placed in series on the secondary side of the coupled inductors to enhance the high boost capability.The implementation of maximum power point tracking(MPPT)is facilitated by the simplification of the control system through common ground.To verify the effectiveness of the proposed converter,an experimental platform and a prototype based on a turns ratio of 1 are presented.The test results show that the voltage stresses on the switches are only 1/8 of the output voltage.The operating principle and design guidelines of the proposed converter are described in detail.The experimental results show that the converter is efficient and stable over a wide power range.
