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74LCX760 Low Voltage Buffer/Line Driver 7
74LCX760 Low Voltage Buffer/Line Driver 7

SSM2167 数据手册DataSheet 下载
SSM2167 数据手册DataSheet 下载

... is set by the side-chain control circuitry. An external blocking capacitor (C2) must be used between the buffer output and the VCA input. The 1 kΩ impedance between amplifiers determines the value of this capacitor, which is typically between 4.7 μF and 10 μF. An aluminum electrolytic capacitor is a ...
2139000 - ESCIES
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... The range of frequencies within which the gain of the amplifier is not more than 3dB below the value of the midband gain. Midband gain is the gain at a specified frequency or the average gain over a specified frequency range. ...
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UPS Operating Modes: A Global Standard
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... quality performance of competing offerings in high efficiency operating modes. As energy efficiency becomes more and more critical, the specifier and customer will be better able to understand and select the best solution for their applications. ...
Connected Array - Electronic Polymers Incorporated
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... Description The EPI-FLO Polymer Voltage Suppressor (PVS) connector array provides a shunt for electro staticdischarge (ESD) which protects sensitive electronic circuits from the damaging effects of over voltage and over current events. EPI-FLO devices are capable of shunting voltages of up to 25 KV ...
percent arcing current used to calculate incident energy on low
percent arcing current used to calculate incident energy on low

... Section 2.0, the low magnitude arcing currents can be outside of this range, possibly on the order of 15% of the time. The area of greatest concern tends to be the lower fault currents rather than the higher fault currents, due to the potentially long clearing times. In the analysis, three options t ...
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PCAN-MicroMod Mix 2 - User Manual - PEAK

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Ripple: Refers to a low or medium frequency repeating oscillation on
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... The MAX687/MAX688/MAX689 low-dropout linear regulators operate with an input-to-output voltage differential limited only by an external PNP transistor. Outputs are fixed at 3.3V (MAX687/MAX688) or 3.0V (MAX689). The only external components required are a PNP pass transistor and output, compensation ...
Electricity Ch. 17 Sect. 3
Electricity Ch. 17 Sect. 3

... a circuit? 〉 Electrical devices can be connected as a series circuit so that the voltage is divided among the devices. They can also be connected as a parallel circuit so that the voltage is the same across each device. • series circuit: a circuit in which the parts are joined one after another such ...
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Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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