TIL300应用电路
til300应用电路
the til300 precision linear optocoupler consists of an infrared led irradiating an isolated feedback photodiode
and an output photodiode in a bifurcated arrangement. the feedback photodiode captures a percentage of the
flux of the led and generates a control signal that can be used to regulate the led drive current. this technique
is used to compensate for the nonlinear time and temperature characteristics of the led. the output-side
photodiode produces an output signal that is linearly proportional to the servo-optical flux emitted from the led.
a typical application circuit (shown in figure 1) uses an operational amplifier as the input to drive the led. the
feedback photodiode sources current through r1, which is connected to the inverting input of the input
operational amplifier. the photocurrent ip1 assumes a magnitude that satisfies the relationship ip1 = vi/r1. the
magnitude of the current is directly proportional to the led current through the feedback transfer gain
k1(vi/r1 = k1 × if). the operational amplifier supplies led current to produce sufficient photocurrent to keep
the node voltage vb equal to node voltage va.
notes: a. k1 is servo current gain, the ratio of the feedback photodiode current (ip1) to the input led current (if), i.e. k1 = ip1/if.
b. k2 is forward gain, the ratio of the output photodiode current (ip2) to the input led current (if), i.e. k2 = ip2/if.
c. k3 is transfer gain, the ratio of the forward gain to the servo gain, i.e. k3 = k2/k1.
figure 1. typical application circuit
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TIL300应用电路
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巴西运营商强烈抵制对5G网络设备制造商的限制
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5G的到来开启了中国高铁进入了5G信息化时代
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the til300 precision linear optocoupler consists of an infrared led irradiating an isolated feedback photodiode
and an output photodiode in a bifurcated arrangement. the feedback photodiode captures a percentage of the
flux of the led and generates a control signal that can be used to regulate the led drive current. this technique
is used to compensate for the nonlinear time and temperature characteristics of the led. the output-side
photodiode produces an output signal that is linearly proportional to the servo-optical flux emitted from the led.
a typical application circuit (shown in figure 1) uses an operational amplifier as the input to drive the led. the
feedback photodiode sources current through r1, which is connected to the inverting input of the input
operational amplifier. the photocurrent ip1 assumes a magnitude that satisfies the relationship ip1 = vi/r1. the
magnitude of the current is directly proportional to the led current through the feedback transfer gain
k1(vi/r1 = k1 × if). the operational amplifier supplies led current to produce sufficient photocurrent to keep
the node voltage vb equal to node voltage va.
notes: a. k1 is servo current gain, the ratio of the feedback photodiode current (ip1) to the input led current (if), i.e. k1 = ip1/if.
b. k2 is forward gain, the ratio of the output photodiode current (ip2) to the input led current (if), i.e. k2 = ip2/if.
c. k3 is transfer gain, the ratio of the forward gain to the servo gain, i.e. k3 = k2/k1.
figure 1. typical application circuit
人工智能怎样帮你创造专属配乐
浅析功率电路里面的预充电电路
半导体的3D之路－兼论三维单片堆叠
安防视频监控技术在地铁的应用分析
新版储能逆变器测试指南
TIL300应用电路
华为、同方中标中国联通云PaaS平台大数据及分布式存储系统项目
华为首款i9触控一体机MateStation X智慧办公再升级
什么是热继电器？为何用热继电器进行过载保护？
巴西运营商强烈抵制对5G网络设备制造商的限制
STM32WL无线SoC引爆物联网
奔驰B级车灯升级改装PDK LED双光透镜
手机行业的跑分软件是噱头还是实力
人工智能推动教育变革技术 未来2-3年内有望得到普遍应用
基于新型传感器和MSP430单片机实现抄表数据采集系统的设计
荣耀Magic2评测 重新定义和指引智能手机发展方向
5G的到来开启了中国高铁进入了5G信息化时代
系统总线的特点_系统总线工作原理
串行外设接口(SPI)扩展大容量数据存储器
网络系统安全接入认证方法探讨