Lec#05: Active Filters
... • Each type of filter response (lowpass, high-pass, band-pass, or bandstop) can be tailored by circuit component values to have either a • Butterworth, • Chebyshev, or • Bessel characteristic. • Each of these characteristics is identified by the shape of the response curve, and each has an advantag ...
... • Each type of filter response (lowpass, high-pass, band-pass, or bandstop) can be tailored by circuit component values to have either a • Butterworth, • Chebyshev, or • Bessel characteristic. • Each of these characteristics is identified by the shape of the response curve, and each has an advantag ...
Practical exercises for learning to construct NMR/MRI probe circuits
... There are many ways to match a tuned circuit to the universal standard of 50 V resistive. Transmitters, amplifiers, and coaxial cable are all designed for this source/load impedance, so the coil’s impedance should be transformed to be 50 V resistive, too. A typical coil might have an inductive impeda ...
... There are many ways to match a tuned circuit to the universal standard of 50 V resistive. Transmitters, amplifiers, and coaxial cable are all designed for this source/load impedance, so the coil’s impedance should be transformed to be 50 V resistive, too. A typical coil might have an inductive impeda ...
CP2104 - Silicon Labs
... The CP2104 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232/RS-485 designs to USB using a minimum of components and PCB space. The CP2104 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, one-time programmable ROM, and ...
... The CP2104 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232/RS-485 designs to USB using a minimum of components and PCB space. The CP2104 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, one-time programmable ROM, and ...
INTERNATIONAL STANDARD IEC 60044-2
... This consolidated version of IEC 60044-2 is based on the first edition (1997) [documents 38/162/FDIS and 38/175/RVD], its amendment 1 (2000) [documents 38/244/FDIS and 38/254/RVD] and its amendment 2 (2002) [documents 38/286/FDIS and 38/290/RVD. It bears the edition number 1.2. A vertical line in th ...
... This consolidated version of IEC 60044-2 is based on the first edition (1997) [documents 38/162/FDIS and 38/175/RVD], its amendment 1 (2000) [documents 38/244/FDIS and 38/254/RVD] and its amendment 2 (2002) [documents 38/286/FDIS and 38/290/RVD. It bears the edition number 1.2. A vertical line in th ...
A simple maximum power point tracker for thermoelectric generators
... MPPT process is affected by the accuracy of setting the inductance, incorporated in the power converter, to the desired value (due to inductance value tolerance, as well as its variation with the operating temperature), (ii) it does not enable tuning the inductance and switching frequency to the app ...
... MPPT process is affected by the accuracy of setting the inductance, incorporated in the power converter, to the desired value (due to inductance value tolerance, as well as its variation with the operating temperature), (ii) it does not enable tuning the inductance and switching frequency to the app ...
HOW TO AVOID ERRORS CAUSED BY HEAT EFFECTS IN STRAIN
... All test results show surprisingly short time constants. It can be stated, that 100 ms after powering the strain gages, the remaining error is lower than 1 µm/m in almost every case. When supplying the bridge with 0.5 V, the apparent strains generated by heat effects are near or far below 1 µm/m . 3 ...
... All test results show surprisingly short time constants. It can be stated, that 100 ms after powering the strain gages, the remaining error is lower than 1 µm/m in almost every case. When supplying the bridge with 0.5 V, the apparent strains generated by heat effects are near or far below 1 µm/m . 3 ...
05_transistordcbias1
... When the transistor is operating in the Saturation Region, the transistor is conducting at maximum collector current (based on the resistances in the output circuit, not the spec sheet value) such that: ...
... When the transistor is operating in the Saturation Region, the transistor is conducting at maximum collector current (based on the resistances in the output circuit, not the spec sheet value) such that: ...
AD5641: 英文产品数据手册下载
... powers up to 0 V and remains there until a valid write to the device takes place. The AD5641 contains a power-down feature that reduces current consumption typically to 0.2 μA at 3 V, and provides software-selectable output loads while in power-down mode. The part is put into power-down mode over th ...
... powers up to 0 V and remains there until a valid write to the device takes place. The AD5641 contains a power-down feature that reduces current consumption typically to 0.2 μA at 3 V, and provides software-selectable output loads while in power-down mode. The part is put into power-down mode over th ...
LT5526 - High Linearity, Low Power Downconverting Mixer.
... is: RRF + jXRF = 31.3 + j8.41Ω. The 8.41Ω reactance is divided into two halves, with one half on each side of the 31.3Ω internal load resistor, as shown in Figure 4. The matching network consists of additional external series inductance and a capacitor (C1) in parallel with the desired source impeda ...
... is: RRF + jXRF = 31.3 + j8.41Ω. The 8.41Ω reactance is divided into two halves, with one half on each side of the 31.3Ω internal load resistor, as shown in Figure 4. The matching network consists of additional external series inductance and a capacitor (C1) in parallel with the desired source impeda ...
S280-42-1
... control types. The Type NOVA recloser is available with two configuration options: control-powered interface and auxiliary-powered interface. The solid polymer insulation system does not rely on a gaseous, liquid, or foam dielectric. The NOVA recloser is highly resistant to ozone, oxygen, moisture, ...
... control types. The Type NOVA recloser is available with two configuration options: control-powered interface and auxiliary-powered interface. The solid polymer insulation system does not rely on a gaseous, liquid, or foam dielectric. The NOVA recloser is highly resistant to ozone, oxygen, moisture, ...
frequency limits for seismometers
... The range of frequencies that a seismometer can record is nominally set by the corner frequencies of its amplitude frequency response. In recording pre-event noise in very quiet seismic sites, the internally generated self-noise of the seismometer can put further limits on the range of frequencies t ...
... The range of frequencies that a seismometer can record is nominally set by the corner frequencies of its amplitude frequency response. In recording pre-event noise in very quiet seismic sites, the internally generated self-noise of the seismometer can put further limits on the range of frequencies t ...
ZXRE125 Description Pin Assignments
... precision micropower voltage reference of 1.22 volts. The device is available in the small outline SOT23 surface mount package which is ideal for applications where space saving is important. SOT23 tolerance is available to 0.5% for precision applications. Excellent performance is maintained over th ...
... precision micropower voltage reference of 1.22 volts. The device is available in the small outline SOT23 surface mount package which is ideal for applications where space saving is important. SOT23 tolerance is available to 0.5% for precision applications. Excellent performance is maintained over th ...
MAX14820 IO-Link Device Transceiver General Description Features
... devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol. Additional 24V digital inputs and outputs are provided. Two internal line ...
... devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol. Additional 24V digital inputs and outputs are provided. Two internal line ...
AD5735 数据手册DataSheet下载
... Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA and Voltage Output DAC with Dynamic Power Control ...
... Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA and Voltage Output DAC with Dynamic Power Control ...
![30 x resistor: 390 ohm - [The Perth Artifactory Wiki [ Shared ]]](http://s1.studyres.com/store/data/000413034_1-c61e65b22d69632d6d3459a30281cda9-300x300.png)
30 x resistor: 390 ohm - [The Perth Artifactory Wiki [ Shared ]]
... This is another variable resistor, but in this case the resistance changes depending on the amount of light that hits the top surface of the device. Used in conjunction with a fixed resistor around 10k ohms, it can be used in a circuit to provide a variable voltage to an Arduino analogue input. Note ...
... This is another variable resistor, but in this case the resistance changes depending on the amount of light that hits the top surface of the device. Used in conjunction with a fixed resistor around 10k ohms, it can be used in a circuit to provide a variable voltage to an Arduino analogue input. Note ...
AN4027
... The PFC stage works as pre-regulator and powers the resonant stage with a constant voltage of 400 V. The downstream converter operates only if the PFC is on and regulating. In this way, the resonant stage can be optimized for a narrow input voltage range. The L6699 LINE pin (pin 7) is dedicated to t ...
... The PFC stage works as pre-regulator and powers the resonant stage with a constant voltage of 400 V. The downstream converter operates only if the PFC is on and regulating. In this way, the resonant stage can be optimized for a narrow input voltage range. The L6699 LINE pin (pin 7) is dedicated to t ...
Title A 60 GHz 25% tuning range frequency generator with implicit
... 20 GHz and its 3rd harmonic at 60 GHz. The 60 GHz signal is feed forward to the buffer/PA, while the 20 GHz signal is fed back to the phase detector after further frequency division, as shown in Fig. 1. Consequently, the ÷3 functionality is inherent with the 60 GHz LO thus avoiding any physical divi ...
... 20 GHz and its 3rd harmonic at 60 GHz. The 60 GHz signal is feed forward to the buffer/PA, while the 20 GHz signal is fed back to the phase detector after further frequency division, as shown in Fig. 1. Consequently, the ÷3 functionality is inherent with the 60 GHz LO thus avoiding any physical divi ...
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.