在单相表架构中使用模拟前端MAXQ3180
在单相表架构中使用模拟前端maxq3180
abstract: this application note describes how to adapt the maxq3180 multifunction, polyphase analog front-end (afe) to measure single-phase power. the unique electrical configuration required to configure a maxq3180-based system for this application is provided.
overview three-phase power is commonly delivered to large industrial users and to multifamily dwellings. with billing based on energy usage, the supplying utility must accurately measure all three phases to charge the user the proper fee. there are many applications, most often single-family homes and smaller businesses, that use only a single phase. single-phase measurement is also required to measure the power consumed at the point of use by most appliances such as refrigerators and computers.
the maxq3180 is a dedicated electricity measurement front-end device. it collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load. the computed results can be retrieved by an external master through the on-chip spi™ bus.
although the maxq3180 was designed to perform measurements across three supply phases, it can also measure single-phase energy by using only phase a inputs and leaving the b and c channels disconnected. the remainder of this application note describes the simple procedure to implement this single-phase operation.
hardware configuration to configure the device inputs for single-phase operation, the following changes must be made:
short the v1p, v2p, vn, and vcomm pins together. short the i1p and i1n pins together. short the i2p and i2n pins together. software configuration using the maxq3180 in single-phase measurement mode requires no special software configuration. simply ignore registers and settings relating to the b and c voltages.
specifically, these registers include:
all phase b calibration and status registers
all phase c calibration and status registers
all phase b measurement registers
all phase c measurement registers
all virtual registers ending in .b or .c if phase b and phase c are not required, device performance can be improved by disabling the scan functions associated with those phases. setting bit 3 of the following registers will disable the corresponding scan function:
scan_ib
scan_vb
scan_ic
scan_vc typical application drawing below is a typical application drawing for implementing the maxq3180 in a single-phase system.
conclusion the maxq3180 multifunction, polyphase afe can make single-phase measurements. the device requires only a simple connection to the line and load to allow this operation. this configuration can also improve device performance, as the unused channels can have their scan functions disabled which reduces the amount of calculations that must be performed in a cycle.
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abstract: this application note describes how to adapt the maxq3180 multifunction, polyphase analog front-end (afe) to measure single-phase power. the unique electrical configuration required to configure a maxq3180-based system for this application is provided.
overview three-phase power is commonly delivered to large industrial users and to multifamily dwellings. with billing based on energy usage, the supplying utility must accurately measure all three phases to charge the user the proper fee. there are many applications, most often single-family homes and smaller businesses, that use only a single phase. single-phase measurement is also required to measure the power consumed at the point of use by most appliances such as refrigerators and computers.
the maxq3180 is a dedicated electricity measurement front-end device. it collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load. the computed results can be retrieved by an external master through the on-chip spi™ bus.
although the maxq3180 was designed to perform measurements across three supply phases, it can also measure single-phase energy by using only phase a inputs and leaving the b and c channels disconnected. the remainder of this application note describes the simple procedure to implement this single-phase operation.
hardware configuration to configure the device inputs for single-phase operation, the following changes must be made:
short the v1p, v2p, vn, and vcomm pins together. short the i1p and i1n pins together. short the i2p and i2n pins together. software configuration using the maxq3180 in single-phase measurement mode requires no special software configuration. simply ignore registers and settings relating to the b and c voltages.
specifically, these registers include:
all phase b calibration and status registers
all phase c calibration and status registers
all phase b measurement registers
all phase c measurement registers
all virtual registers ending in .b or .c if phase b and phase c are not required, device performance can be improved by disabling the scan functions associated with those phases. setting bit 3 of the following registers will disable the corresponding scan function:
scan_ib
scan_vb
scan_ic
scan_vc typical application drawing below is a typical application drawing for implementing the maxq3180 in a single-phase system.
conclusion the maxq3180 multifunction, polyphase afe can make single-phase measurements. the device requires only a simple connection to the line and load to allow this operation. this configuration can also improve device performance, as the unused channels can have their scan functions disabled which reduces the amount of calculations that must be performed in a cycle.
无线通信中的回声与噪声消除解决方案的介绍
智能设备爆发和IOT趋势为PXI平台带来新发展机遇
5G对于VR/AR的意义取决于VR/AR的成熟度
在iQOO电竞夏令营，KPL职业选手面对面带你上王者
小米CC9 Pro主打拍照功能搭载了1亿像素镜头
在单相表架构中使用模拟前端MAXQ3180
仁和ERP企业OA智能办公系统软件
影响国内电动汽车市场发展的因素有哪些
得捷618正品盛会最后召集！
中国联通在4G、5G和宽带严重落后其他运营商，如何翻身逆袭？
普渡餐饮机器人在巴奴大展身手，强势助力新餐饮
空调三巨头争艳黄金周 冲击现有行业格局
vivo新机跑分破107万，再次坐实天玑9000旗舰性能
石墨烯景气指数上升,行业标准问题亟待解决
JASMINER茉莉支持第三届元宇宙生态大会成功举办
中兴通讯和高通发布最新财报 净利润增长趋势揭晓
NI助力本土厂商在门槛极高的模拟领域实现突破
电脑选台FM收音机电路图,原理图
国内首家电网侧储能电站AGC联网试验成功，它主要包含哪些内容？
荧光灯电子镇流器方案详解