Common Impedance Coupling
... This definition implies that since current is flowing through some low, but finite, impedance there will be a difference of potential between two physically separated points in the ground system. It is important for the designer to know the actual return current path to evaluate the radiated emissio ...
... This definition implies that since current is flowing through some low, but finite, impedance there will be a difference of potential between two physically separated points in the ground system. It is important for the designer to know the actual return current path to evaluate the radiated emissio ...
MAX9982EV Kit - Maxim Integrated
... selection of the LO port. Providing a ground at TP3 selects LO2, and leaving TP3 open selects LO1. To drive TP3 from an external source, follow the limits called out in the MAX9982 data sheet. Logic voltages should not be applied to TP3 without the +5V applied. Doing so can cause the on-chip ESD dio ...
... selection of the LO port. Providing a ground at TP3 selects LO2, and leaving TP3 open selects LO1. To drive TP3 from an external source, follow the limits called out in the MAX9982 data sheet. Logic voltages should not be applied to TP3 without the +5V applied. Doing so can cause the on-chip ESD dio ...
MRFIC1859 Dual-Band/GSM 3.6 V Integrated Power Amplifier
... GSM and 100 mA in DCS. However, the negative generator needs a settling time of 1.0 µs (see burst mode paragraph). During this transient period of time, both stages are biased to IDSS, which is about 200 mA each. The step–up positive voltage available at Pin 2, which is approximately 10 V in each ba ...
... GSM and 100 mA in DCS. However, the negative generator needs a settling time of 1.0 µs (see burst mode paragraph). During this transient period of time, both stages are biased to IDSS, which is about 200 mA each. The step–up positive voltage available at Pin 2, which is approximately 10 V in each ba ...
DMS-20LCD Series - Murata Power Solutions
... must be fully tested by the user, using a combination of low supply voltages and the input signal’s minimum and maximum levels, to ensure that all display readings are valid as long as the LOW BAT annunciator remains off. 6. Gain Adjust: There is a gain-adjust potentiometer on the back of each meter ...
... must be fully tested by the user, using a combination of low supply voltages and the input signal’s minimum and maximum levels, to ensure that all display readings are valid as long as the LOW BAT annunciator remains off. 6. Gain Adjust: There is a gain-adjust potentiometer on the back of each meter ...
Capacitor Circuit Investigation Name Hour ______ Purpose: Use
... clicking on it. How does the voltage drop across each capacitor compare to the voltage across the battery after they are charged up? The battery has the same voltage drop as each capacitor/ If you add up the capacitors’ drops you get the battery voltage/ There is no relationship at all between the v ...
... clicking on it. How does the voltage drop across each capacitor compare to the voltage across the battery after they are charged up? The battery has the same voltage drop as each capacitor/ If you add up the capacitors’ drops you get the battery voltage/ There is no relationship at all between the v ...
Wind Transformer Step Up Transformer MQP
... implementation to itself of the system it is integrated into in an effort to make the system more feasible from a technical and economic standpoint. This report focuses on the particular problem that is causing the premature aging and failure of step up transformers in wind farms most likely due to ...
... implementation to itself of the system it is integrated into in an effort to make the system more feasible from a technical and economic standpoint. This report focuses on the particular problem that is causing the premature aging and failure of step up transformers in wind farms most likely due to ...
MAX4888A/MAX4889A 5.0Gbps PCI Express Passive Switches General Description Features
... aimed at reallocating PCIe lanes (see Figure 5). For example, in graphics applications, several manufacturers have found that it is possible to improve performance by a factor of nearly two by splitting a single 16-lane PCIe bus into two 8-lane buses. Two of the more prominent examples are SLI™ (Sca ...
... aimed at reallocating PCIe lanes (see Figure 5). For example, in graphics applications, several manufacturers have found that it is possible to improve performance by a factor of nearly two by splitting a single 16-lane PCIe bus into two 8-lane buses. Two of the more prominent examples are SLI™ (Sca ...
chapter 2 - UniMAP Portal
... 1. The step-up transformer provides a secondary voltage that is greater than the primary voltage. Ex: a step-up transformer may provides a 240 Vac output with a 120 Vac input. 2. The step-down transformer provides a secondary voltage that is less than the primary voltage. Ex: a step-down transformer ...
... 1. The step-up transformer provides a secondary voltage that is greater than the primary voltage. Ex: a step-up transformer may provides a 240 Vac output with a 120 Vac input. 2. The step-down transformer provides a secondary voltage that is less than the primary voltage. Ex: a step-down transformer ...
ADV7120 数据手册DataSheet 下载
... 8-bit, video D/A converters (RGB); a standard TTL input interface and high impedance, analog output, current sources. ...
... 8-bit, video D/A converters (RGB); a standard TTL input interface and high impedance, analog output, current sources. ...
LF412-N 数据资料 dataSheet 下载
... minimize “pick-up” and maximize the frequency of the feedback pole by minimizing the capacitance from the input to ground. A feedback pole is created when the feedback around any amplifier is resistive. The parallel resistance and capacitance from the input of the device (usually the inverting input ...
... minimize “pick-up” and maximize the frequency of the feedback pole by minimizing the capacitance from the input to ground. A feedback pole is created when the feedback around any amplifier is resistive. The parallel resistance and capacitance from the input of the device (usually the inverting input ...
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.