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An integrated reset controller (voltage supervisor) is designed and implemented. The system generates a reset signal, active while power supply brownout conditions are detected and for 250 ms after the supply voltage has increased to acceptable levels. The circuit is built in a Deep N-Well (DNW) 5V 0.35μm CMOS process, which provides good isolation between the on-chip devices and the substrate. The...
In this paper, the main circuit model of EAST (Experimental and Advanced Superconducting Tokamak) fast control power supply is built on RT-LAB semi-physical simulation platform, which forms a feedback closed loop with an external hardware circuit to achieve the function of EAST fast control power supply. The expected effect is achieved in closed-loop simulation experiment, which indicates the feasibility...
Digital networking processor power supplies typically have voltage sense points at die level so that the die level voltages are regulated and kept at constant DC levels. In this paper, we studied the load-line effect on the power supplies by simulations and lab measurements. We found that the total dissipated power for digital networking processors can be reduced by the introduction of the load-line...
As the development of control theory in power electronics, kinds of control methods are used in high-voltage power supply's design. Simulation is one of the keys to verify the control method accuracy when designing a supply system. In this paper, a phase shifted control method is utilized in parallel resonant circuit, and the condition of the power electronic switch devices during the process of phase...
This paper presents distractive features of hysteresis voltage control for voltage source inverters. The features of the creation of the hysteresis voltage control systems for electric power systems are considered. The possibility of applying of hysteresis voltage control for multilevel voltage source inverters is evaluated. A simulation of a three-level three-phase voltage source inverter with hysteresis...
Estimation of jitter in early design cycle of an SoC is necessary to avoid jitter budget conflicts in the design. In this paper, an analysis of power supply induced jitter in a commonly used voltage mode driver architecture in serial links is discussed. The circuit used for the analysis is designed in 28nm FD-SOI technology but the analysis is technology independent. Jitter induced by noise in power...
Renewable energy system such as a photovoltaic, a wind turbine generation and fuel cell has attracted attention as alternative energy sources of fossil fuel. However, a distributed generating system with the photovoltaic or the wind turbine generation is difficult to obtain a constant power supply. Thus control of power leveling system is required to maintain the balance of power flow for irregular...
DC micro-grids are considered as a friendly way to integrate renewable energy resources as well as distributed energy storage systems. With high penetration of power electronic converters in DC micro-grids, the control strategies of DC micro-grids can be very flexible. However, the line loss is relatively high at the same time. Thus, a proper optimal power flow (OPF) strategy is needed for DC micro-grids...
This paper proposes an active resonant power supply noise cancelling with fast voltage drop sensor using the combination of delay-locked loop (DLL) and vernier time-to-digital converter (TDC). Also, we propose the capacitor selector circuit realizing the active insertion of capacitors in less silicon area. These components enable one clock noise detection with fine resolution. Simulation results show...
Energy storage device is widely used in vehicle and ship, as the only or the backup DC power supply. For multiple energy storage devices operating in parallel, it's necessary to adopt current-sharing control to improve the safety and the reliability of these devices. There are many current-sharing algorithms, such as the maximum current current-sharing method, the average current current-sharing method,...
We designed a high voltage power supply to to drive a magnetron injection gun. This high voltage power supply needs the output voltage of −40 kV for few seconds continuously. The required output power rate is 280 kW. It also have to be designed for the rise and fall time to be less than 1 ms with the ripple stability of output voltage of lower than 1%. To satisfy the requirements, we used eight high...
A new simulation approach to the analysis of the low voltage latchup in CMOS process and the high voltage latchup in BCD process technologies is presented. The approach uses new automated numerical algorithm simulating real standard three-stage latchup test and relies on parameterized 2-D mixed-mode simulation of a finite-element model (FEM) structure that represents the parasitic structure formed...
This paper proposes a power integrity control technique for dynamically controlling power supply voltage fluctuations for a device under test (DUT). The proposed method controls the power supply voltage on an automatic test equipment (ATE) system in a feed-forward manner by supplying a compensation current into the power supply line based on the power supply voltage waveform difference between the...
In the field of power system relay protection,the 220volts dc power supply is ofen used, and we often use the dual input power supply in order to increase reliability, however there are many shortcomings in the current dual switch switching circuit, for example,it needs a long time for the two power supply to switch when one of them fail to provide the electricity,besides , the two input power supply...
Fusion Advanced Studies Torus (FAST) conceptual study has been proposed as possible European ITER Satellite. This facility is aimed at exploring and preparing ITER operation scenarios as well as helping DEMO design and R&D. This paper presents the plasma position and shape control studies, focusing on the machine flexibility in terms of both operational space and physics that can be investigated...
To broaden the output voltage adjustment range of the X-Ray high voltage dc power supply and to make control circuit simple, a high frequency high voltage X-ray power supply with full bridge LLC (FB-LLC) series resonant converter is proposed. FB-LLC series resonant, high voltage transformer and bipolar single-phase symmetrical voltage multiplier are used in the main circuit. The parameters of the...
This work describes the details of high voltage d.c. power supply whose output is 60kV where as input voltage is 1-Φ 50Hz 5kV of sinusoidal waveform. This test -set is suitable for field testing of high voltage cables, as prime d.c source for.VLF, OWT and impulse voltage charging unit due to its light weight and portability. In study, we constructed a prototype high voltage power supply...
Based on the characteristics of switching power supply, this paper, taking MC34063A IC as the research object, has proposed the design, realized design of single-transistor positive buck DC-DC converter through calculation and component selection, and simulated the circuit of the design using Saber software. When the input voltage is 15V~25V, the output voltage has been stabilized within the scope...
DC-to-DC converters are widely applied at the field of renewable energy such as photovoltaic(PV) generation and wind energy generation. Affected by the speed of wind, the front end power supply of a converter often changes over a wide range. DC-to-DC converters are typical nonlinear dynamical systems. To gain fine dynamic state and steady state characteristics, in this paper, a nonlinear control law,...
Based on sufficient study on the output characteristics of the solar cell, in this paper, a kind of simulator simulating the output of the solar cell, using the single-chip computer (SCM) and DC/DC inverter is designed. This simulator can simulate the output of the solar cell, completely according to the working characteristic curve given by the solar cell. Thereby it can eliminate the outside influence...
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