EEEE 482 Lab7 Rev2015 1 - RIT - People
... output is transitioning from VOH to VOL, the high-to-low propagation delay tdHTL is taken to be the time required for Vout to fall from VOH to V50%. These definitions assume rapidly rising or falling inputs, and must be refined somewhat for more realistic input waveforms. The internal capacitors for ...
... output is transitioning from VOH to VOL, the high-to-low propagation delay tdHTL is taken to be the time required for Vout to fall from VOH to V50%. These definitions assume rapidly rising or falling inputs, and must be refined somewhat for more realistic input waveforms. The internal capacitors for ...
PMSM electrical parameters measurement
... A resistance of the stator winding Rs is defined as a resistance between a phase terminal and the center of the winding. The winding resistance is temperature dependent. Usually the resistance value at 25 °C or specified temperature is listed in the motor’s datasheet. Calculate resistance R at opera ...
... A resistance of the stator winding Rs is defined as a resistance between a phase terminal and the center of the winding. The winding resistance is temperature dependent. Usually the resistance value at 25 °C or specified temperature is listed in the motor’s datasheet. Calculate resistance R at opera ...
8 Application of dc motors
... flux weakening gives higher speeds of operation it reduces the torque produced by the machine for a given armature current and hence the power delivered does not increase at any armature current. The machine is said to be in constant power mode under field weakening mode of control. Above the nomina ...
... flux weakening gives higher speeds of operation it reduces the torque produced by the machine for a given armature current and hence the power delivered does not increase at any armature current. The machine is said to be in constant power mode under field weakening mode of control. Above the nomina ...
WS_08
... Question 10. 10 V is applied across the series combination of a 1000 and a 2000 resistor. What is the voltage across the 2000 resistor? What is the current through the 2000 resistor? Question 11. 10 V is applied across the parallel combination of a 1000 and a 2000 resistor. What is the voltag ...
... Question 10. 10 V is applied across the series combination of a 1000 and a 2000 resistor. What is the voltage across the 2000 resistor? What is the current through the 2000 resistor? Question 11. 10 V is applied across the parallel combination of a 1000 and a 2000 resistor. What is the voltag ...
Source Transformations
... Replacing series or parallel resistors by an equivalent resistor. Replacing series voltage sources by an equivalent voltage source. Replacing parallel current sources by an equivalent source source. ...
... Replacing series or parallel resistors by an equivalent resistor. Replacing series voltage sources by an equivalent voltage source. Replacing parallel current sources by an equivalent source source. ...
AD7356 数据手册DataSheet下载
... Serial Data Outputs. The data output is supplied to each pin as a serial data stream. The bits are clocked out on the falling edge of the SCLK input. To access the 12 bits of data from the AD7356, 14 SCLK falling edges are required. The data simultaneously appears on both data output pins from the s ...
... Serial Data Outputs. The data output is supplied to each pin as a serial data stream. The bits are clocked out on the falling edge of the SCLK input. To access the 12 bits of data from the AD7356, 14 SCLK falling edges are required. The data simultaneously appears on both data output pins from the s ...
- Kewtech
... to zero and a steady insulation resistance reading indicates that the capacitance of the system is fully charged. The system is charged to the full test voltage, and will be dangerous if left with this charge. The KT61 provides an automatic path for discharging current as soon as the test button is ...
... to zero and a steady insulation resistance reading indicates that the capacitance of the system is fully charged. The system is charged to the full test voltage, and will be dangerous if left with this charge. The KT61 provides an automatic path for discharging current as soon as the test button is ...
Application Notes Relays - ZETTLER electronics GmbH
... If neighbouring contact sets within the same relay switch essentially different voltages and arcs at the contacts occur, a short circuit between the sets by the arc cannot be excluded. A clarifying discussion with the relay supplier is recommended. Countermeasures are: – Another circuit layout which ...
... If neighbouring contact sets within the same relay switch essentially different voltages and arcs at the contacts occur, a short circuit between the sets by the arc cannot be excluded. A clarifying discussion with the relay supplier is recommended. Countermeasures are: – Another circuit layout which ...
Using Electrostatic Discharge Test Method for Full
... that an ESD even is an extremely fast pulsation in most cases. All these pose a major technical challenge to any attempt to modify the existing DC test method on dissipative materials over a wider voltage range. Therefore, any modification based upon the existing DC test meter may not be suitable or ...
... that an ESD even is an extremely fast pulsation in most cases. All these pose a major technical challenge to any attempt to modify the existing DC test method on dissipative materials over a wider voltage range. Therefore, any modification based upon the existing DC test meter may not be suitable or ...
ADL5504 数据手册DataSheet 下载
... but is particularly useful for measuring high crest factor (high peak-to-rms ratio) signals, such as W-CDMA, CDMA2000, WiMAX, WLAN, and LTE waveforms. ...
... but is particularly useful for measuring high crest factor (high peak-to-rms ratio) signals, such as W-CDMA, CDMA2000, WiMAX, WLAN, and LTE waveforms. ...
S8VS (15/30/60/90/120/180/240/480-W Models)
... Do not use an inverter output for the Power Supply. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the Power Supply may result in ignition or burning. *2. For a cold start at 25°C. Refer to Engineering Data on page 18 for details. *3. If the ...
... Do not use an inverter output for the Power Supply. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the Power Supply may result in ignition or burning. *2. For a cold start at 25°C. Refer to Engineering Data on page 18 for details. *3. If the ...
SP485 数据资料DataSheet下载
... EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for i ...
... EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for i ...
BDTIC www.BDTIC.com/infineon Z V S P h a s e ... C F D 2 O p t i...
... After the VDS of MOSFET D is zero, the ZVS turn-on of MOSFET D will take place. At this point a freewheeling phase starts, where the primary of the main transformer is short circuited, then the MOSFET A turn-on command arrives. In other words, the A/B leg transition starts after a free-wheeling phas ...
... After the VDS of MOSFET D is zero, the ZVS turn-on of MOSFET D will take place. At this point a freewheeling phase starts, where the primary of the main transformer is short circuited, then the MOSFET A turn-on command arrives. In other words, the A/B leg transition starts after a free-wheeling phas ...
Rotating Coil / Helmholtz Coil Magnetic Measurement - SPring-8
... observe a steady increase of the output voltage during the measurement due to elongating coil when 0.2mm diameter enamel coated copper wire was used. A lock-in amplifier (Stanford Research SR850) with a DSP has an advantage of having very low detectable frequency (1 mHz.) It also has very high dynam ...
... observe a steady increase of the output voltage during the measurement due to elongating coil when 0.2mm diameter enamel coated copper wire was used. A lock-in amplifier (Stanford Research SR850) with a DSP has an advantage of having very low detectable frequency (1 mHz.) It also has very high dynam ...
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.