Closed-loop motor control: An introduction to
... Conclusively, a resolver is a very robust position sensor for a control system that offers high accuracy possibilities and long operating life. A disadvantage of the resolver is its maximum rotational speed. Because resolver signal frequencies tend to be less than 5 kHz, motor speeds need to be less ...
... Conclusively, a resolver is a very robust position sensor for a control system that offers high accuracy possibilities and long operating life. A disadvantage of the resolver is its maximum rotational speed. Because resolver signal frequencies tend to be less than 5 kHz, motor speeds need to be less ...
CR fridges manual 08us.indd
... When connecting the refrigerator electrically, it is important that following points are considered: Always use cables of sufficient area. The area in the following table should be regarded as a minimum. * Always connect the refrigerator directly to the battery or to the battery main switch on the p ...
... When connecting the refrigerator electrically, it is important that following points are considered: Always use cables of sufficient area. The area in the following table should be regarded as a minimum. * Always connect the refrigerator directly to the battery or to the battery main switch on the p ...
Using IHLP`s in Automotive Applications
... but the downside to this strategy is an increase in losses. Dc-to-dc converters are also being asked to operate at higher ambient temperatures. This in turn requires the inductor to operate at the higher temperature in addition to its own temperature rise incurred due to power losses. It is known th ...
... but the downside to this strategy is an increase in losses. Dc-to-dc converters are also being asked to operate at higher ambient temperatures. This in turn requires the inductor to operate at the higher temperature in addition to its own temperature rise incurred due to power losses. It is known th ...
BD14000EFV-C Datasheet
... It is assumed that up to 10mA maximum is applied as external load, and since it is a basic simple power supply, it can only apply power to I/F. Please use only after a thorough inspection of electrical characteristics and confirm that no problem will arise from use. It is recommended to use a cerami ...
... It is assumed that up to 10mA maximum is applied as external load, and since it is a basic simple power supply, it can only apply power to I/F. Please use only after a thorough inspection of electrical characteristics and confirm that no problem will arise from use. It is recommended to use a cerami ...
HI-102 Guide for the Installation, Operation, and Maintenance of
... Lightning Arresters—Conventional transformers should be protected by properly rated lightning arresters. Ground connections on the arresters should be made before connection to the highvoltage line is made. On Howard Industries CSP transformers, lightning protection is normally provided by lightning ...
... Lightning Arresters—Conventional transformers should be protected by properly rated lightning arresters. Ground connections on the arresters should be made before connection to the highvoltage line is made. On Howard Industries CSP transformers, lightning protection is normally provided by lightning ...
ADG3243 数据手册DataSheet 下载
... switches. The bus switches are positioned on the hot swap card between the connector and the devices. During hot swap, the ground pin of the hot swap card must connect to the ground pin of the backplane before any other signal or power pins. Analog Switching ...
... switches. The bus switches are positioned on the hot swap card between the connector and the devices. During hot swap, the ground pin of the hot swap card must connect to the ground pin of the backplane before any other signal or power pins. Analog Switching ...
Electrostatic Properties and Characterization of
... 3.1. Selected research textile materials and preparation of samples To verify the described method for measuring electrostatic properties of textile materials affected by ions two types of textile materials were selected. The first group was textile materials based on one type of natural or manmade ...
... 3.1. Selected research textile materials and preparation of samples To verify the described method for measuring electrostatic properties of textile materials affected by ions two types of textile materials were selected. The first group was textile materials based on one type of natural or manmade ...
Rubidium Frequency Standards
... market and this was primarily due to the work of Packard and Schwartz who had been strongly influenced by the work of Arditi a few years before on Alkali atoms (of which Rb 87 is one). Unlike much of the research done into frequency standards at that time, practical realization of a Rubidium maser w ...
... market and this was primarily due to the work of Packard and Schwartz who had been strongly influenced by the work of Arditi a few years before on Alkali atoms (of which Rb 87 is one). Unlike much of the research done into frequency standards at that time, practical realization of a Rubidium maser w ...
APC FireCrest Surge
... Protector? Power Surges and spikes created by such things as home appliances, lightning, and even the Utility company themselves can cause premature failure of electronics, computers, and computer equipment. Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) created by app ...
... Protector? Power Surges and spikes created by such things as home appliances, lightning, and even the Utility company themselves can cause premature failure of electronics, computers, and computer equipment. Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) created by app ...
1. Introduction
... 1. Start with a voltage lower than 60% of the measuring voltage (Upd). 2. Raise to voltage to the pre-stress voltage (Upre-stress), note the inception voltage (Ui). 3. Maintain the voltage at the pre-stress voltage for 60 s. 4. Lower the voltage to the measuring voltage (Upd). 5. Indentify the extin ...
... 1. Start with a voltage lower than 60% of the measuring voltage (Upd). 2. Raise to voltage to the pre-stress voltage (Upre-stress), note the inception voltage (Ui). 3. Maintain the voltage at the pre-stress voltage for 60 s. 4. Lower the voltage to the measuring voltage (Upd). 5. Indentify the extin ...
IEEE 802.3at 高功率供电器件(PD) 接口带有外部栅极驱动器(Rev. A)
... CDB is an active low output that is pulled to RTN when the device is in inrush current limiting, going open when the inrush period has completed once the GATE output has become higher than 6 V. This ensures the external pass transistor is enhanced before the load is enabled. It remains in a high imp ...
... CDB is an active low output that is pulled to RTN when the device is in inrush current limiting, going open when the inrush period has completed once the GATE output has become higher than 6 V. This ensures the external pass transistor is enhanced before the load is enabled. It remains in a high imp ...
TPA2017D2 数据资料 dataSheet 下载
... The Automatic Gain Control (AGC) feature provides continuous automatic gain adjustment to the amplifier through an internal PGA. This feature enhances the perceived audio loudness and at the same time prevents speaker damage from occurring (Limiter function). The AGC works by detecting the audio inp ...
... The Automatic Gain Control (AGC) feature provides continuous automatic gain adjustment to the amplifier through an internal PGA. This feature enhances the perceived audio loudness and at the same time prevents speaker damage from occurring (Limiter function). The AGC works by detecting the audio inp ...
A Robust Solution for 100-Amp Hot Swap of 12
... to account for the anticipated worst-case bulk charging time. For applications with high nominal input voltages, or large load capacitance, this may lead to setting extended fault time-out delays. Unfortunately, extended delay periods make it difficult to protect the pass FET(s) in other scenarios, ...
... to account for the anticipated worst-case bulk charging time. For applications with high nominal input voltages, or large load capacitance, this may lead to setting extended fault time-out delays. Unfortunately, extended delay periods make it difficult to protect the pass FET(s) in other scenarios, ...
RFSW2044D DC TO 25GHz GaAs SPST SWITCH Features Product Description
... it should not exceed half the chip height. For automated dispense Ablestick LMISR4 is recommended and for manual dispense Ablestick 84-1 LMI or 84-1 LMIT are recommended. These should be cured at a temperature of 150°C for one hour in an oven especially set aside for epoxy curing only. If possible t ...
... it should not exceed half the chip height. For automated dispense Ablestick LMISR4 is recommended and for manual dispense Ablestick 84-1 LMI or 84-1 LMIT are recommended. These should be cured at a temperature of 150°C for one hour in an oven especially set aside for epoxy curing only. If possible t ...
Design of Enhanced MPPT Techniques for Solar and Wind Energy
... This technique is also known as constant current method. ISC is the Short circuit current of the PV panel. ISC depends on the property of the solar cells. This relationship can be described by equation. I (MPP) = k2 * I Here the factor k2 is always <1. It looks very simple but determining best value ...
... This technique is also known as constant current method. ISC is the Short circuit current of the PV panel. ISC depends on the property of the solar cells. This relationship can be described by equation. I (MPP) = k2 * I Here the factor k2 is always <1. It looks very simple but determining best value ...
An integrated heterojunction bipolar transistor cascode opto
... The differential equations (given in the Appendix) that represent the schematic circuit diagram shown in Fig. 7(b) were solved numerically using the MATLAB/SIMULINK software. The down-conversion and up-conversion gains of the single HBT OEM were calculated for RF modulation frequency of 3 GHz and LO ...
... The differential equations (given in the Appendix) that represent the schematic circuit diagram shown in Fig. 7(b) were solved numerically using the MATLAB/SIMULINK software. The down-conversion and up-conversion gains of the single HBT OEM were calculated for RF modulation frequency of 3 GHz and LO ...
RF3194 QUAD-BAND GSM POWER AMP MODULE Features
... impedance presented to the PA varies, so does the output power and current to the power amplifier. If left uncontrolled, power amplifier current can peak at high levels that starve other circuitry, connected to the same supply, of the required voltage to operate. This can result in a reset or shutdo ...
... impedance presented to the PA varies, so does the output power and current to the power amplifier. If left uncontrolled, power amplifier current can peak at high levels that starve other circuitry, connected to the same supply, of the required voltage to operate. This can result in a reset or shutdo ...
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.