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Recent years have seen the popularization of model based development (MBD) using models based on block diagrams. In many mechatronics systems, including automobile engine control and the brake control, a closed loop control is used to manage controls based on feedback data from control target objects. In order to develop a closed loop control using model base, a plant model that simulates the behavior...
Recent years have seen the popularization of model based development (MBD) using models based on block diagrams. In many mechatronics systems, including automobile engine control and the brake control, a closed loop control is used to manage controls based on feedback data from control target objects. In order to develop a closed loop control using model base, a plant model that simulates the behavior...
In the previous research, the fast P control method is proposed. In this method, the PID control part is divided into the P control and I-D control parts. The high speed-low resolution A-D converter and low speed-high resolution A-D converter are required for the P control and I-D control, respectively. These two A-D converters are lower cost than the high-speed and high-resolution A-D converter....
This paper presents a novel digital P-I-D control FPGA for a switching power supply in the higher voltage direct-current (HVDC) power feeding system. At first, digital fast P control buck type converter is presented. Then, the appropriate number of sample point is determined. Then the fast P control is applied to the full bridge converter for HVDC. The acceptable delay time, with realizing superior...
This paper presents the performance of novel digital P-I-D control switching power supply with fast proportional control, which is compared with conventional digital control. The transient response is improved, while the transient response of proposed method is improved even with P-I-D parameters that are same to the conventional method. It is confirmed that it has the superior transient response,...
This paper introduces a novel fast average current mode digital control for dc-dc converter. The proposed control circuit has two features. First, the voltage controlled oscillator (VCO) is used for the switch/reactor current detection. The VCO is low price and can transform to digital value quickly without complex calculation when the current is detected. Second, the digital feedback value of output...
This paper proposes a new fast response frequency digital control with multi-sampling point for LLC resonant dc-dc converter. In the power supply system, the digitally controlled LLC resonant converter will be widely used, because it is a high power efficiency characteristic. However it is necessary to improve the digital control method because the delay time based on calculation occurs. In the conventional...
In this paper, a new digital average current-injected control dc-dc converter using the Voltage Controlled Oscillator (VCO) and the PID control with fast P process is proposed. Features of the proposed digital control circuit are using the VCO and the PID control with fast P process. The VCO is a low price and can be fast transform when the reactor current is detected in real time. The VCO converts...
This paper presents transient response characteristics of digitally controlled dc-dc converter with a new control method. In the conventional digital control method, the sampling rate is single and the calculation process of P-I-D control is series. On the other hand, in the proposed method, the sampling rate is multiple and the calculation process of P and I-D controls is parallel. The AD converter...
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