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microstepping test board with specialized circuits
microstepping test board with specialized circuits

EE Treasure Hunter
EE Treasure Hunter

... current to the search coil. The field is then forced to change very rapidly by switching off this current. As the field decays it induces a voltage back into the coil and also into objects near The use of a power MOSFET to drive the coil also helps to the coil. simplify the circuit. It can be driven ...
AD584 - Analog Devices
AD584 - Analog Devices

C1415 Controller Board Setup and Operating
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... Please note that the following installation instructions must be followed in strict accordance with the order outlined below. 1. Verify controller board is wired up properly per the wiring diagram supplied with the actuator. 2. Do not connect any command signals to the actuator at this time. 3. Veri ...
Mixed Signal Design Paradigms for Analog Circuit Design in Deep
Mixed Signal Design Paradigms for Analog Circuit Design in Deep

soul vegetarian company overview - Lightcraft Outdoor Environments
soul vegetarian company overview - Lightcraft Outdoor Environments

... Learning Objectives Within This Presentation This presentation will cover the basics as well as advanced design concepts. An email copy of this presentation is available upon request. • Basics of professional lighting vs. home center products • Basics of lighting fundamentals • Basics of lighting “ ...
UL 2560 - TekTone
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MAX8880/MAX8881 12V, Ultra-Low-I , Low-Dropout Linear Regulators with POK
MAX8880/MAX8881 12V, Ultra-Low-I , Low-Dropout Linear Regulators with POK

... The MAX8880/MAX8881 feature a 2Ω P-channel MOSFET pass transistor. This provides advantages over similar designs using PNP pass transistors, including longer battery life. The P-channel MOSFET requires no base drive, which reduces quiescent current considerably. PNP-based regulators waste considerab ...
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Nexys4™ FPGA Board Reference Manual

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AT84AD001B and AT84AD004B Dual ADC Application Note
AT84AD001B and AT84AD004B Dual ADC Application Note

thyristors and triacs control gate trigger circuits
thyristors and triacs control gate trigger circuits

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a 8-Bit, 50 MSPS/80 MSPS/100 MSPS 3 V A/D Converter AD9283

... The analog signal is applied differentially or single-endedly to the inputs of the AD9283. The signal is buffered and fed forward to an on-chip sample-and-hold circuit. The ADC core architecture is a bit-per-stage pipeline type converter utilizing switch capacitor techniques. The bit-per-stage block ...
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... Signal powered isolators are easily installed to fix unexpected isolation problems. Because they require no separate power supply, there is minimal effect on the wiring resulting in the lowest installed cost. They cannot be used if the input signal does not have sufficient drive capability and it is ...
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Power Quality - Portal UniMAP

... batteries for portable models can last much longer. But not without a downside. Because of the pulsed nature of the output, it contains a fairly high level of harmonics, which can flow back out onto the power distribution system, adversely affecting other equipment and even the wiring itself. ...
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... The HMC221A(E) is a low-cost SPDT switch in a 6-lead SOT26 plastic package for use in general switching applications which require very low insertion loss and very small size. This device can control signals from DC to 3 GHz and is especially suited for 900 MHz, 1.8 - 2.2 GHz, and 2.4 GHz ISM applic ...
Polarity adaptive RS-485/RS
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... receiver output when the receiver inputs are open or shorted. This means that the receiver output will be logic high even if all transmitters on a terminated bus are disabled. The RY485 feature reduced slew-rate driver that minimize EMI and reduce reflections caused by improperly terminated cables, ...
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... 2.RA series products (RF power amplifier modules) and RD series products (RF power transistors) are designed for consumer mobile communication terminals and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpos ...
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... It is well know that the professional power amplifier focus on stability, large power, high efficiency and accurate sound performance.Now we can see many classes of audio power amplifier such as: class A class AB class D class H and others. They were named for one unique technology. In the field of ...
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Orangutan X2 quick-start guide and schematic

... The Orangutan X2 is intended to be used as a single unit with both boards connected together. However, it may sometimes be convenient to work with just the lower board, without motors or a large power supply connected. In such cases, the two power input pins above the 20-pin connector can be used. I ...
Specifications
Specifications

... Print length (shot length) Continuous, 20 cm, 50 cm, 1 m, 2 m Memory length 2.5 M/CH fixed, max. 1000 div (depends on chart speed) Numerical printing Digital values Intervals: 1 s, 2 s, 5 s, 10 s, 15 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, ...
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Pulse-width modulation



Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.
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