scholarly journals New Design of a Boost Drive Circuit with an Energy Recovery Function for the Piezoelectric Jacquard Needle

2021 ◽  
Vol 29 (1(145)) ◽  
pp. 86-91
Author(s):  
Wen Xia ◽  
Wen Ren ◽  
Sencai Lai

Aiming at the technical bottlenecks existing in the current warp knitting machine control system such as jacquard drive circuit, the design method of self-boosting power supply circuit integrated with jacquard driver is proposed for the embedded warp knitting machine jacquard control system for miniaturization design. The voltage boost circuit designed can boost the low voltage from the input of the working power supply to the high voltage for the output to drive the oscillation of the piezoelectric ceramic jacquard needles. Since the circuit adopts energy storage inductance instead of current-limiting resistor to optimize the driving circuit, it not only limits the forward charging current of the piezoelectric ceramic, but also effectively realize the energy recovery function. The effectiveness of the design method is verified by simulation.

2013 ◽  
Vol 765-767 ◽  
pp. 2413-2416
Author(s):  
Yue Ting Yang ◽  
Yan Song Ding ◽  
Jia Jian Liu

The piezoelectric ceramic transformer has the advantages of high conversion efficiency, high pressure, electromagnetic compatibility,etc.It overcomes the shortcomings of large electromagnetic interference, low conversion efficiency , a large volume, etc. Using IR2184,the paper designs piezoelectric ceramic transformer full-bridge driver circuit. It greatly improves the conversion efficiency of the power system and power.


2016 ◽  
Vol 818 ◽  
pp. 169-173
Author(s):  
Muhamad Syukri Md Noh ◽  
Yanuar Z. Arief ◽  
Nor Asiah Muhamad

The present study deals with the development of remote control system based on the Global System for Mobile Communication (GSM) technology for switching the low voltage AC power supply system at residential consumer. Function of this system is to disconnect and reconnect the electricity supply to consumers. The introduction of the GSM technology and particularly the use of hand-held mobile phones has brought the innovative distance communication to remote locations. This utilization of this technology for the remote control of systems and appliances will make life easier, safe and quick from anywhere. GSM module was used for receiving short message service (SMS) from user’s mobile phone that automatically enable the controller to take any further action such as to switch on and off the consumer load at the incoming power supply. The system was integrated with microcontroller and GSM network interface using assembly language. AVR Studio 4 software was utilized to accomplish the integration. The system is activated when user sends the SMS to GSM controller circuit at electric meter consumption panel board. Upon receiving the SMS command, the microcontroller unit then automatically controls the incoming power supply by switching on or off the device according to the user command. In other words, the developed system reads message from the mobile phone and responds to control the devices according to the received message. The system can also give feedback to the user to inform the status of switching operation if such command is received.


2014 ◽  
Vol 620 ◽  
pp. 193-199
Author(s):  
Zhong Xian Wang ◽  
Yong Geng Wei ◽  
Yi Lin Song

As the primary energy consumption and environmental pollution increasing seriously, green energy has been more and more got attention of researchers both at home and abroad, especially the study of solar occupies a large proportion in the development of green energy. The photovoltaic (PV) power supply system has many advantages, however, there are still problems, e.g. low voltage, low power, poor ability to resist disturbance. Around these problems, the paper designed a PV power supply control system could realize the uninterrupted power supply, including DC and AC supply. By the method of combining software with hardware, through the solar panel to the configured two pieces of battery could realize the function of fast and float charging, and the supply battery is changed by testing the battery power to load uninterrupted power supply. Moreover, when the output voltage of the solar panel is lower than the battery, the output voltage of solar panel is boosted by DC/DC circuit to make the solar panel at low pressures also to charge the battery, effectively solving the difficult solar energy in the weak power supply problem. Finally, the design of PV power supply control system not only could realize DC supply, and also AC power supply by SPWM method, which has good effect of power supply.


2014 ◽  
Vol 986-987 ◽  
pp. 1794-1798
Author(s):  
Long Teng Wang ◽  
Jun Lin ◽  
Hui Su

This paper proposes a design method of the micro power consumption synchronous chopped wave and low-power switching power supply based on fixed and mobile double comparative point. The output of this power supply ranges from 5V to 200V. It overcomes the residual voltage effect after the bridge rectifier by using fixed comparative point to limit the maximum output voltage, and stabilizes the voltage by using mobile point to produce the required output voltage. The circuit charges with nonlinear resistors pattern in the low voltage, thus improving the charging efficiency, and it has short circuit protection function, simple structure and low power consumption.


2014 ◽  
Vol 490-491 ◽  
pp. 1053-1056
Author(s):  
Sun Ki Hong ◽  
Jung Seop Lee ◽  
Nam Hee Byeon ◽  
Taesam Kang

Common R or R-L load do not need special inverter circuits, however piezoelectric load can be considered as R-C load and its voltage does not become 0 even though the applied voltage is 0. Therefore it needs some special inverter with circuit that can discharge the capacitive energy. Especially for unidirectional square-wave voltage driving, it becomes more serious problem. In this paper, an energy recovery circuit for unidirectional square-wave voltage driving for piezoelectric load is proposed. With the circuit, the peak load current and the power supply capacity can be reduced because the energy in the load capacitor is saved to a capacitor for energy recovery and recharged from the capacitor. The appropriateness is proved from the simulation of the proposed circuit.


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Wen Ren ◽  
Xia Wen ◽  
Sencai Lai

Aiming at the challenging problem of the traditional warp knitting machine electronic jacquard control system with complex structure of multiple circuit boards layered cascade, such as large physical space occupation, high power consumption, and independent high-voltage power supply voltage, we proposed an embedded circuit and control strategy design for the piezoelectric jacquard needle (PJN) with adaptive boost and energy recovery functions. Firstly, the electromechanical dynamics model of PJN was established. Secondly, the fuzzy PI double closed-loop control algorithm driven by a finite state machine is proposed. Thirdly, with the help of a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), the PJN is integrated with the drive circuit. The drive circuit of PJN uses an energy storage inductor to replace the current limiting resistor of the traditional drive circuit, which can not only limit the forward charging current of the PJN and reduce energy loss but also can use the energy absorbed from the low-voltage power supply to adaptively boost the power supply of the PJN to the high voltage required for working conditions. The simulation results show that the new PJN drive circuit has an adaptive self-boost function. The PWM signal modulated by the fuzzy PI double closed-loop control algorithm can efficiently and accurately control the adaptive boost power supply and the voltage across the PJN. The mode of the circuit can be correctly switched through the sequential logic of the finite state machine and realize the energy recovery function.


2015 ◽  
Vol 775 ◽  
pp. 390-393
Author(s):  
Xiang Yong Su ◽  
Hu Guo ◽  
Xiang Bo Qu ◽  
Ze Long Zhou

This paper presents the structure design and the performance testing method of a novel type of gas braking control system. Based on PDSOFT 3D design method double gas detection instrument control system has been carefully designed, effectively using the space of the case body. Using a direct acting overflow pressure reducing control technology, effectively through gas level decompression pressure were quickly and accurately is reduced to 0.7Mpa and 0.45Mpa, according to the tightness test results show, the tester can keep the pressure stability of the error is less than 0.1%. With quick joints of interlocking sealing design technology based on, settle the problem of connecting and sealing between the traction chassis brake system pneumatic hose and gas path instrument brake control pipeline, detection of gas pipeline. In the design of DC regulated power supply, the innovation to the DC voltage stabilizing circuit modular design, can effectively avoid the input voltage fluctuation on the influence of the load end, to ensure the stable operation of the independent power supply module tester. The tester can be easily used to test their performance general traction air braking system chassis in the stationary state, and can be directly used digital display reading way test data will be output directly, save the test time, improve the test efficiency.


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