Atmel AVR1607: Brushless DC Motor (BLDC) Control in Sensor
... A simplified model of a three-phase BLDC motor stator consists of three coils arranged in three directions, U, V, and W (Figure 2-1). A permanent magnet forms the rotor. The rotor in a BLDC motor consists of an even number of permanent magnets. The number of magnetic poles in the rotor also affects ...
... A simplified model of a three-phase BLDC motor stator consists of three coils arranged in three directions, U, V, and W (Figure 2-1). A permanent magnet forms the rotor. The rotor in a BLDC motor consists of an even number of permanent magnets. The number of magnetic poles in the rotor also affects ...
Basic Concepts
... We will introduce two new linear elements, the capacitor and the inductor. Unlike resistors, which can only dissipate energy, these two elements can only store energy, which can then be retrieved at a later time. ...
... We will introduce two new linear elements, the capacitor and the inductor. Unlike resistors, which can only dissipate energy, these two elements can only store energy, which can then be retrieved at a later time. ...
Users guide and maintenance manual Leroy Somer Alternators LSA
... - Insert a clamp ammeter to monitor the current passing through the short-circuit connections. - Connect a 24 Volt battery in series with a rheostat of approximately 10 ohms (50 W) to the exciter field terminals, respecting the polarity. - Open fully all the alternator openings. - Run the alternator ...
... - Insert a clamp ammeter to monitor the current passing through the short-circuit connections. - Connect a 24 Volt battery in series with a rheostat of approximately 10 ohms (50 W) to the exciter field terminals, respecting the polarity. - Open fully all the alternator openings. - Run the alternator ...
FFA40UP35S Ultrafast Diode 40 A, 350 V Ultrafast Diode
... The FFA40UP35S is an ultrafast diode with low forward voltage drop and rugged UIS capability. This device is intended for use as freewheeling and clamping diodes in a variety of switching power supplies and other power swithching applications. It is specially suited for use in switching power suppli ...
... The FFA40UP35S is an ultrafast diode with low forward voltage drop and rugged UIS capability. This device is intended for use as freewheeling and clamping diodes in a variety of switching power supplies and other power swithching applications. It is specially suited for use in switching power suppli ...
ACTIVE NEGATIVE INDUCTOR BASED ON MAGNETIC FLUX D. D.
... using measured values of VL and VR along with the first expressions in Eqs. (5)and (6). The trend lines in the reactive impedance (Figure 5) are the result of linear fits to the data. The curves are labeled with the inductance values obtained from the slopes. These values are in reasonable agreement ...
... using measured values of VL and VR along with the first expressions in Eqs. (5)and (6). The trend lines in the reactive impedance (Figure 5) are the result of linear fits to the data. The curves are labeled with the inductance values obtained from the slopes. These values are in reasonable agreement ...
Head movement based wireless communication with speech alert
... A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolatio ...
... A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolatio ...
Electrical Evaluation of the Taser M-26 Stun Weapon
... energy source that has a very high voltage, a waveform shaper and impedance that is connected serially with the load. This is shown in a block diagram form in Fig. 2. "S" is a switch that when activated will connect the high voltage energy source to the rest of the circuit. The waveform shaper gener ...
... energy source that has a very high voltage, a waveform shaper and impedance that is connected serially with the load. This is shown in a block diagram form in Fig. 2. "S" is a switch that when activated will connect the high voltage energy source to the rest of the circuit. The waveform shaper gener ...
Lecture 7: RF front-end design LNA mixer
... (2) Power matching: adjusting Le such that the real part of the LNA input impedance equals to 50 Ohm. For 5AM, Le is about 0.2nH Æ Use multiple downbonds to reduce the package effect ...
... (2) Power matching: adjusting Le such that the real part of the LNA input impedance equals to 50 Ohm. For 5AM, Le is about 0.2nH Æ Use multiple downbonds to reduce the package effect ...
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E General Description
... Devices in the MAX3483E family (MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) are ±15kV ESD-protected, +3.3V, low-power transceivers for RS-485 and RS-422 communications. Each device contains one driver and one receiver. The MAX3483E and MAX3488E feature slew-rate-limited drivers that mini ...
... Devices in the MAX3483E family (MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) are ±15kV ESD-protected, +3.3V, low-power transceivers for RS-485 and RS-422 communications. Each device contains one driver and one receiver. The MAX3483E and MAX3488E feature slew-rate-limited drivers that mini ...
experiment - UniMAP Portal
... Characteristics of a Three-Phase Synchronous Motor 11. Change the value of resistor R, and vary the setting of the EXCITER knob on the Synchronous Motor/Generator so that the field current passes from the minimum current to the maximum current indicated in the following Table 6.1, in ten steps that ...
... Characteristics of a Three-Phase Synchronous Motor 11. Change the value of resistor R, and vary the setting of the EXCITER knob on the Synchronous Motor/Generator so that the field current passes from the minimum current to the maximum current indicated in the following Table 6.1, in ten steps that ...
Fundamental Signal Conditioning
... block includes a suitable sample-and-hold circuit (either internal or external to the chip) to stabilize the input signal during the conversion period. The primary parameters concerning ADCs in data acquisition systems are resolution and speed. Data acquisition ADCs typically run from 20 kHz to 1 MH ...
... block includes a suitable sample-and-hold circuit (either internal or external to the chip) to stabilize the input signal during the conversion period. The primary parameters concerning ADCs in data acquisition systems are resolution and speed. Data acquisition ADCs typically run from 20 kHz to 1 MH ...
SE5012T 数据资料DataSheet下载
... device integrates the input match, inter-stage match, a temperature compensated, load insensitive power detector with 20dB of dynamic range, a 3.8GHz notch filter, a T/R switch and LNA. For wireless LAN applications, the device meets the requirements of IEEE802.11a and delivers approximately 17dBm o ...
... device integrates the input match, inter-stage match, a temperature compensated, load insensitive power detector with 20dB of dynamic range, a 3.8GHz notch filter, a T/R switch and LNA. For wireless LAN applications, the device meets the requirements of IEEE802.11a and delivers approximately 17dBm o ...
Aalborg Universitet
... The correlation is a bit lower for the voltages simulated at the receiving end of the cable. The voltage rise caused by the Ferranti effect is in the measurements 8% where in the ...
... The correlation is a bit lower for the voltages simulated at the receiving end of the cable. The voltage rise caused by the Ferranti effect is in the measurements 8% where in the ...
ADC12C080 12-Bit, 65/80 MSPS A/D Converter (Rev. C)
... When the input voltage at any pin exceeds the power supplies (that is, VIN < AGND, or VIN > VA), the current at that pin should be limited to ±5 mA. The ±50 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of ±5 mA to 1 ...
... When the input voltage at any pin exceeds the power supplies (that is, VIN < AGND, or VIN > VA), the current at that pin should be limited to ±5 mA. The ±50 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of ±5 mA to 1 ...
No joules for surges: Relevant and realistic assessment of
... flashover on the sides of a varistor disc, failure at the boundary layers of the varistor grains, or fracture of large discs, have also been identified and are not related to energy. 3. Semiconductordevices, such as thyristors responding to the rate of voltage change can be turned on by a surge [lo] ...
... flashover on the sides of a varistor disc, failure at the boundary layers of the varistor grains, or fracture of large discs, have also been identified and are not related to energy. 3. Semiconductordevices, such as thyristors responding to the rate of voltage change can be turned on by a surge [lo] ...
Little Genius Plus 3 Row / 2 Row
... hardware construction and may be replaced by any two digit number from 00 to 99.Throughout this manual, the following methods are used to highlight important information: NOTE : Describes important considerations related to a device setup, feature or application. CAUTION : Alerts you to a condition ...
... hardware construction and may be replaced by any two digit number from 00 to 99.Throughout this manual, the following methods are used to highlight important information: NOTE : Describes important considerations related to a device setup, feature or application. CAUTION : Alerts you to a condition ...
Macro-Tech - AE Techron
... Macro Tech amplifiers utilize numerous Crown innovations including grounded bridge and ODEP technologies. Cooling techniques make use of the what is essentially air conditioner technology. Air flows bottom to top, and front to side. Air flows a short distance across a wide heatsink. Output transisto ...
... Macro Tech amplifiers utilize numerous Crown innovations including grounded bridge and ODEP technologies. Cooling techniques make use of the what is essentially air conditioner technology. Air flows bottom to top, and front to side. Air flows a short distance across a wide heatsink. Output transisto ...
MAX4561/MAX4568/MAX4569 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches General Description
... turns off when the ESD event is finished and normal operation resumes. Also, remember that the holding current varies significantly with temperature. The worst case is at +85°C when the holding currents drop to 70mA. Since this is a typical number to guarantee turnoff of the SCRs under all condition ...
... turns off when the ESD event is finished and normal operation resumes. Also, remember that the holding current varies significantly with temperature. The worst case is at +85°C when the holding currents drop to 70mA. Since this is a typical number to guarantee turnoff of the SCRs under all condition ...
1100B Technical Specifications - Mitsubishi Electric Power Products
... 1. Insulated Gate Bipolar Transistor (IGBT) Converter. 2. Insulated Gate Bipolar Transistor (IGBT) Inverter. 3. Microprocessor (CPU) using Pulse Width Modulation (PWM) for Direct Digital Control (DDC) of all UPS control and monitoring functions. 4. Static bypass switch sized to provide fault clearin ...
... 1. Insulated Gate Bipolar Transistor (IGBT) Converter. 2. Insulated Gate Bipolar Transistor (IGBT) Inverter. 3. Microprocessor (CPU) using Pulse Width Modulation (PWM) for Direct Digital Control (DDC) of all UPS control and monitoring functions. 4. Static bypass switch sized to provide fault clearin ...
Electronic components
... 1.3.3 Advantages of ceramic over mica and paper capacitor :(1) Economical, (2) Very High working voltage rating, (3) Very small size but large capacitance, (4) It has very low power factor and value decreases with increase in frequency. 1.3.4 Electrolytic Capacitor- The entire sandwich with plates a ...
... 1.3.3 Advantages of ceramic over mica and paper capacitor :(1) Economical, (2) Very High working voltage rating, (3) Very small size but large capacitance, (4) It has very low power factor and value decreases with increase in frequency. 1.3.4 Electrolytic Capacitor- The entire sandwich with plates a ...
BD00IA5WEFJ
... BDxxIA5WEFJ series devices are LDO regulators with an output current of 0.5A. The output accuracy is ±1% of the output voltage. Both fixed and variable output voltage devices are available. The output voltage of the variable output voltage device can be varied from 0.8 to 4.5V using external resisto ...
... BDxxIA5WEFJ series devices are LDO regulators with an output current of 0.5A. The output accuracy is ±1% of the output voltage. Both fixed and variable output voltage devices are available. The output voltage of the variable output voltage device can be varied from 0.8 to 4.5V using external resisto ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)