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... Previous logic families with slower rise and fall times such as LS and HCMOS were not as severely affected by this issue if line lengths were not too long. For example, an HCMOS buffer with a 5 ns edge will start exhibiting transmission line effects when a circuit board trace is longer than a foot. ...
... Previous logic families with slower rise and fall times such as LS and HCMOS were not as severely affected by this issue if line lengths were not too long. For example, an HCMOS buffer with a 5 ns edge will start exhibiting transmission line effects when a circuit board trace is longer than a foot. ...
Theory of Robotics Arm Control with PLC
... Arm using a programmable logic controller (PLC) along with gripper. The control system consisted of the electronic components (the PLC, a motor controller, a voltage regulator, a control pendent and a bride board circuit). The Robotic Arm works manually using potentiometers and also with the help of ...
... Arm using a programmable logic controller (PLC) along with gripper. The control system consisted of the electronic components (the PLC, a motor controller, a voltage regulator, a control pendent and a bride board circuit). The Robotic Arm works manually using potentiometers and also with the help of ...
Lab E4: B-field of a Solenoid
... voltage or current, including our DMM’s, display rms values. In this lab, you will be reading the voltage directly from the oscilloscope screen, so you should indicate whether you are reporting the amplitude or peak-to-peak voltage. It would be nice if we could use our DMM’s to measure the AC voltag ...
... voltage or current, including our DMM’s, display rms values. In this lab, you will be reading the voltage directly from the oscilloscope screen, so you should indicate whether you are reporting the amplitude or peak-to-peak voltage. It would be nice if we could use our DMM’s to measure the AC voltag ...
DRV8881 - Texas Instruments
... The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for the ...
... The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for the ...
How to correctly Phase Bulova Accutrons for Silver Oxide cells
... Phasing the 214, 218 and 2210 The following assumes the watch has been dismantled, cleaned, reassembled and lubricated, and with the index and pawl jewels set exactly as per the Bulova workshop manual for the movement in question. If you are using the Bulova 700 test set in conjunction with your var ...
... Phasing the 214, 218 and 2210 The following assumes the watch has been dismantled, cleaned, reassembled and lubricated, and with the index and pawl jewels set exactly as per the Bulova workshop manual for the movement in question. If you are using the Bulova 700 test set in conjunction with your var ...
Resistor Selection
... “watts dissipated per square inch of winding surface” for a given temperature rise. For power type resistors operating at 300°C rise above ambient, this figure varies between approximately 6.3 watts per square inch for large resistors (175 watt) to about 9 watts per square inch for smaller resistors ...
... “watts dissipated per square inch of winding surface” for a given temperature rise. For power type resistors operating at 300°C rise above ambient, this figure varies between approximately 6.3 watts per square inch for large resistors (175 watt) to about 9 watts per square inch for smaller resistors ...
PAM8019 - Diodes Incorporated
... The PAM8019 is a high performance CMOS audio-amplifier that requires adequate power supply decoupling to ensure the THD and PSRR are as low as possible. Power supply decoupling also prevents oscillation caused by long leads between the amplifier and the speaker. The optimum decoupling is achieved by ...
... The PAM8019 is a high performance CMOS audio-amplifier that requires adequate power supply decoupling to ensure the THD and PSRR are as low as possible. Power supply decoupling also prevents oscillation caused by long leads between the amplifier and the speaker. The optimum decoupling is achieved by ...
MAX503 5V, Low-Power, Parallel-Input, Voltage-Output, 10-Bit DAC _______________General Description
... _______________General Description The MAX503 is a low-power, 10-bit, voltage-output digitalto-analog converter (DAC) that uses single 5V or dual ±5V supplies. This device has an internal voltage reference plus an output buffer amplifier. Operating current is only 250µA from a single 5V supply, maki ...
... _______________General Description The MAX503 is a low-power, 10-bit, voltage-output digitalto-analog converter (DAC) that uses single 5V or dual ±5V supplies. This device has an internal voltage reference plus an output buffer amplifier. Operating current is only 250µA from a single 5V supply, maki ...
LMV1090 数据资料 dataSheet 下载
... Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those ...
... Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those ...
EPC9107 QSG.indd - Efficient Power Conversion
... NOTE. The dead-times for both the leading and trailing edges have been set for optimum full load efficiency. Adjustment is not recommended, but can be done at own risk by replacing R21 and R22 with potentiometers P1 and P2. This should be done while monitoring both the input current and switch-node ...
... NOTE. The dead-times for both the leading and trailing edges have been set for optimum full load efficiency. Adjustment is not recommended, but can be done at own risk by replacing R21 and R22 with potentiometers P1 and P2. This should be done while monitoring both the input current and switch-node ...
LTC2310-12 – 12-Bit + Sign, 2Msps Differential Input ADC with Wide
... may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All voltage values are with respect to ground. Note 3: When these pin voltages are taken below ground, or above VDD or OVDD, they will ...
... may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All voltage values are with respect to ground. Note 3: When these pin voltages are taken below ground, or above VDD or OVDD, they will ...
ECE3155_Ex_3_Diodes
... approximation techniques used to solve circuits that include diodes. A brief overview is included here for reference. The most accurate diode approximation method makes use of the exponential diode equation. This equation takes into account such important effects as temperature and diode materials, ...
... approximation techniques used to solve circuits that include diodes. A brief overview is included here for reference. The most accurate diode approximation method makes use of the exponential diode equation. This equation takes into account such important effects as temperature and diode materials, ...
AN43 - Bridge Circuits
... available to obtain highly accurate bridge readouts. Bridge amplifiers are designed to accurately extract the bridges differential output from its common mode level. The ability to reject common mode signal is quite critical. A typical 10V powered strain gauge transducer produces only 30mV of signal ...
... available to obtain highly accurate bridge readouts. Bridge amplifiers are designed to accurately extract the bridges differential output from its common mode level. The ability to reject common mode signal is quite critical. A typical 10V powered strain gauge transducer produces only 30mV of signal ...
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.