交流接触器节能芯片ZDLX-1H的设计研究
发布时间：2019-03-02 12:39
【摘要】：交流接触器作为一种大规模使用在工农业中的低压电器,其在全国的使用量数以亿计,耗电总量巨大。因此,为缓解能源紧张,构建节能型社会,设计一款具有自主知识产权的交流接触器节能芯片有重要意义。 本文根据交流接触器“强电吸合,弱电吸持”的工作原理,设计出一款交流接触器节能芯片ZDLX-1H(浙大绿芯1号)。以此芯片为核心的节能器与型号为CJ20-100A(220V)的交流接触器配合使用,使交流接触器能够在很小导通角的直流方式下运行,不仅能够节约电能,还能显著的降低噪声与温升。节能器体积小,易于安装,可以方便的对现有传统的交流接触器进行改造。此外,芯片ZDLX-1H还设计了过压报警、欠压报警和温度报警功能,提高了节能器工作的安全性和可靠性。 主要工作以及创新点包括： (1)设计了智能脉宽调制(PWM)模式的节能器：当交流接触器进入节能状态之后,芯片输出的脉宽能够根据外电压自动调节,当外电路电压过高或者过低时,节能器输出脉宽(导通角)相应减小或者增大,从而保证节能器中流过的电流在一个合适的范围之内,使节能率保持稳定。 (2)设计了低压分断功能：节能器在电源电压低至132V时给出释放信号,使交流接触器断开。 (3)设计了欠压报警功能：节能器的电源电压低至185V时,给出报警信号。 (4)设计了过压报警功能：节能器的电源电压高于242V时,给出报警信号,该功能在现有版本测试中未实现,在新版中已经重新设计。 (5)设计了过温报警功能。芯片检测到周围温度高于125℃时,节能器报警；当温度降低且低于85℃,报警解除(此温度报警范围为2014年4月新版(流片中)的数据,而文中第五章测试数据为2013年11月流片的现有版本数据,文中其它与温度报警相关的内容均已采用新版流片的数据) (6)采用CSMC0.5um数模混合CMOS工艺实现了交流接触器的节能芯片ZDLX-1H。测试结果表明,以该芯片为核心的节能器配合交流接触器工作,节电率可达90%以上。芯片静态工作电流300uA左右,功耗仅为1.5mW。符合低功耗设计指标,并且通过了国家标准GB8871—2001中的EMC项目测试。
[Abstract]:Ac contactors as a large-scale use of low-voltage electrical appliances in industry and agriculture, its use in the country hundreds of millions, the total amount of electricity consumption is huge. Therefore, in order to alleviate the energy shortage and construct the energy-saving society, it is of great significance to design an AC contactor energy-saving chip with independent intellectual property rights. According to the working principle of AC contactor "strong electric absorption, weak electric absorption", a kind of AC contactor energy saving chip ZDLX-1H (Zhejiang University Green Core No. 1) is designed in this paper. The energy-saving device based on this chip is used in conjunction with the AC contactor model CJ20-100A (220V), which enables the AC contactor to operate in a DC mode with very small conduction angle. It can not only save electric energy, but also significantly reduce noise and temperature rise. The economizer is small in volume, easy to install, and can be easily modified to traditional AC contactors. In addition, the chip ZDLX-1H also designed the functions of over-voltage alarm, under-voltage alarm and temperature alarm, which improved the safety and reliability of the economizer. The main work and innovations are as follows: (1) the intelligent PWM (PWM) mode economizer is designed. When the AC contactor enters the energy-saving state, the output pulse width of the chip can be automatically adjusted according to the external voltage. When the voltage of the external circuit is too high or too low, the output pulse width (on angle) of the economizer decreases or increases accordingly, so as to ensure that the current passing through the economizer is within a suitable range and keep the energy saving rate stable. (2) the low-voltage break-off function is designed: when the power supply voltage is as low as 132 V, the energy-saving device gives the release signal and causes the AC contact device to break off. (3) the undervoltage alarm function is designed: when the power supply voltage of the economizer is as low as 185 V, the alarm signal is given. (4) the alarm function of over-voltage is designed: when the power supply voltage of the economizer is higher than 242V, the alarm signal is given, which has not been realized in the test of the current version, and has been redesigned in the new version. (5) the function of overheating alarm is designed. When the temperature of the chip is higher than 125 鈩，
本文编号：2433058
[Abstract]:Ac contactors as a large-scale use of low-voltage electrical appliances in industry and agriculture, its use in the country hundreds of millions, the total amount of electricity consumption is huge. Therefore, in order to alleviate the energy shortage and construct the energy-saving society, it is of great significance to design an AC contactor energy-saving chip with independent intellectual property rights. According to the working principle of AC contactor "strong electric absorption, weak electric absorption", a kind of AC contactor energy saving chip ZDLX-1H (Zhejiang University Green Core No. 1) is designed in this paper. The energy-saving device based on this chip is used in conjunction with the AC contactor model CJ20-100A (220V), which enables the AC contactor to operate in a DC mode with very small conduction angle. It can not only save electric energy, but also significantly reduce noise and temperature rise. The economizer is small in volume, easy to install, and can be easily modified to traditional AC contactors. In addition, the chip ZDLX-1H also designed the functions of over-voltage alarm, under-voltage alarm and temperature alarm, which improved the safety and reliability of the economizer. The main work and innovations are as follows: (1) the intelligent PWM (PWM) mode economizer is designed. When the AC contactor enters the energy-saving state, the output pulse width of the chip can be automatically adjusted according to the external voltage. When the voltage of the external circuit is too high or too low, the output pulse width (on angle) of the economizer decreases or increases accordingly, so as to ensure that the current passing through the economizer is within a suitable range and keep the energy saving rate stable. (2) the low-voltage break-off function is designed: when the power supply voltage is as low as 132 V, the energy-saving device gives the release signal and causes the AC contact device to break off. (3) the undervoltage alarm function is designed: when the power supply voltage of the economizer is as low as 185 V, the alarm signal is given. (4) the alarm function of over-voltage is designed: when the power supply voltage of the economizer is higher than 242V, the alarm signal is given, which has not been realized in the test of the current version, and has been redesigned in the new version. (5) the function of overheating alarm is designed. When the temperature of the chip is higher than 125 鈩，
本文编号：2433058
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