
AN2007-06 - MA300Exx, Module Adapter Boards for PrimePACK
... connected between the auxiliary collector and the gate of an IGBT module. When the VCE voltage exceeds the diodes breakdown voltage the diodes current sums with the current from the driver output. Due to increased gate-emitter voltage the transistor is held in an active mode and the turn off process ...
... connected between the auxiliary collector and the gate of an IGBT module. When the VCE voltage exceeds the diodes breakdown voltage the diodes current sums with the current from the driver output. Due to increased gate-emitter voltage the transistor is held in an active mode and the turn off process ...
Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs
... high peak current during start up. The inrush currents shown in Figure 3 may cause severe voltage droops below the power specifications at input terminal if an up-stream power supply does not have enough capacity to handle the sharp current demand. Larger load capacitors result in higher inrush peak ...
... high peak current during start up. The inrush currents shown in Figure 3 may cause severe voltage droops below the power specifications at input terminal if an up-stream power supply does not have enough capacity to handle the sharp current demand. Larger load capacitors result in higher inrush peak ...
MAX16833 Evaluation Kit Evaluates: MAX16833/MAX16833B General Description Features
... 7) Verify that the oscilloscope displays approximately 1A. ...
... 7) Verify that the oscilloscope displays approximately 1A. ...
Datalogic TL46-WL Contrast Sensor Instruction Manual
... push-button and green push-button contemporaneously for 10 sec. - The setting is signalled by the status change of the DELAY LED. If the delay is active after pressing the push-buttons for 2 seconds, the DELAY LED turns OFF, release the push-buttons only after LED repowering (10 sec.). If the delay ...
... push-button and green push-button contemporaneously for 10 sec. - The setting is signalled by the status change of the DELAY LED. If the delay is active after pressing the push-buttons for 2 seconds, the DELAY LED turns OFF, release the push-buttons only after LED repowering (10 sec.). If the delay ...
ADA4938-1 数据手册DataSheet 下载
... 27 MHz, or up to 12 bits from dc to 74 MHz. The output commonmode voltage is adjustable over a wide range, allowing the ADA4938 to match the input of the ADC. The internal common-mode feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion prod ...
... 27 MHz, or up to 12 bits from dc to 74 MHz. The output commonmode voltage is adjustable over a wide range, allowing the ADA4938 to match the input of the ADC. The internal common-mode feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion prod ...
Owner`s Manual
... Figure 3: Load Current Test Load current should be obtained on each motor lead at the controller. Partially close pump discharge valve (keep pressure and flow within specified operating range) until maximum amp reading has been obtained. Compare reading with motor nameplate rating. If reading is 15 ...
... Figure 3: Load Current Test Load current should be obtained on each motor lead at the controller. Partially close pump discharge valve (keep pressure and flow within specified operating range) until maximum amp reading has been obtained. Compare reading with motor nameplate rating. If reading is 15 ...
MAGNE-SONIC 300 SERIES 4-20mA LEVEL TRANSMITTERS
... 1. The power supply section (not shown) converts line power to appropriate voltages for circuit operation. 2. The OSCILLATOR section produces the triangle wave signal used to measure the probe impendance and several square wave signals used to synchronize other parts of the circuit. A voltage contro ...
... 1. The power supply section (not shown) converts line power to appropriate voltages for circuit operation. 2. The OSCILLATOR section produces the triangle wave signal used to measure the probe impendance and several square wave signals used to synchronize other parts of the circuit. A voltage contro ...
User Manual - Prime Controls Co
... permission from Lenze AC Tech Corporation. The information and technical data in this manual are subject to change without notice. Lenze AC Tech makes no warranty of any kind with respect to this material, including, but not limited to, the implied warranties of its merchantability and fitness for a ...
... permission from Lenze AC Tech Corporation. The information and technical data in this manual are subject to change without notice. Lenze AC Tech makes no warranty of any kind with respect to this material, including, but not limited to, the implied warranties of its merchantability and fitness for a ...
Servicing The Engine Management System
... Alternating current voltage should not exceed 50 mV AC when voltage is measured at the battery. Excessive AC voltage present at the battery is an indication that the generator/alternator regulator should be diagnosed. High-Current and Voltage Sources Components with high current and high voltage dem ...
... Alternating current voltage should not exceed 50 mV AC when voltage is measured at the battery. Excessive AC voltage present at the battery is an indication that the generator/alternator regulator should be diagnosed. High-Current and Voltage Sources Components with high current and high voltage dem ...
smart voltage reduction
... close as the voltage is reduced (assumed voltage control) This may cause circuits to be leading when in reduction When leaving reduction, some of the capacitors need to be switched off to get back to unity power factor ...
... close as the voltage is reduced (assumed voltage control) This may cause circuits to be leading when in reduction When leaving reduction, some of the capacitors need to be switched off to get back to unity power factor ...
Transformerless UPS systems and the 9900
... Every rectifier, regardless of the technology or power electronics used, will produce harmonics. For all technologies but the IGBT (figure 4), these harmonics are greater than desired for most electrical systems, including the backup generator. Therefore, an input filter is required to reduce the ha ...
... Every rectifier, regardless of the technology or power electronics used, will produce harmonics. For all technologies but the IGBT (figure 4), these harmonics are greater than desired for most electrical systems, including the backup generator. Therefore, an input filter is required to reduce the ha ...
similarities to that of an electromagnetic guitar pickup
... and the component marker R Load is the load applied - in the first case a resistor. In later tests, R Load will be replaced with Z Load, where the load is not simply resistive but also capacitive and there are several possibilities from there too because this series inductance with a shunt resistor ...
... and the component marker R Load is the load applied - in the first case a resistor. In later tests, R Load will be replaced with Z Load, where the load is not simply resistive but also capacitive and there are several possibilities from there too because this series inductance with a shunt resistor ...
BD00KA5WF
... restricted and does not latch even when a large current momentarily flows through the system with a high-capacitance capacitor. However, while this protection circuit is effective for the prevention of destruction due to unexpected accidents, it is not suitable for continuous operation or transient ...
... restricted and does not latch even when a large current momentarily flows through the system with a high-capacitance capacitor. However, while this protection circuit is effective for the prevention of destruction due to unexpected accidents, it is not suitable for continuous operation or transient ...
Leroy Somer – LSA 47.2 VS2
... - There is no short-circuit phase-phase or phase-neutral between the alternator output terminals and the generator set control cabinet (part of the circuit not protected by circuitbreakers or relays in the cabinet). - The machine should be connected with the busbar separating the terminals as shown ...
... - There is no short-circuit phase-phase or phase-neutral between the alternator output terminals and the generator set control cabinet (part of the circuit not protected by circuitbreakers or relays in the cabinet). - The machine should be connected with the busbar separating the terminals as shown ...
6.0 - Electronic Circuits
... E7B04 -- Where on the load line of a Class A common emitter amplifier would bias normally be set? A. Approximately half-way between saturation and cutoff B. Where the load line intersects the voltage axis C. At a point where the bias resistor equals the load resistor D. At a point where the load li ...
... E7B04 -- Where on the load line of a Class A common emitter amplifier would bias normally be set? A. Approximately half-way between saturation and cutoff B. Where the load line intersects the voltage axis C. At a point where the bias resistor equals the load resistor D. At a point where the load li ...
AAT3603 数据资料DataSheet下载
... constant current/constant voltage linear charger. It includes an integrated pass device, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination. The charging current, charge termination current, and recharge voltage are programmable with an e ...
... constant current/constant voltage linear charger. It includes an integrated pass device, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination. The charging current, charge termination current, and recharge voltage are programmable with an e ...
Control of Cascaded DC – DC Converter Based Hybrid Battery
... sudden load variation and power demand mismatches have been identified as the main reason for stability, e.g. [10]– [15], b) using modular converters which consists of the same type of sources (batteries/super-capacitors), a module balancing strategy was reported to enhance the overall performance o ...
... sudden load variation and power demand mismatches have been identified as the main reason for stability, e.g. [10]– [15], b) using modular converters which consists of the same type of sources (batteries/super-capacitors), a module balancing strategy was reported to enhance the overall performance o ...
MAX5923 +60V Simple Swapper Hot-Swap Switch General Description Features
... The MAX5923 provides an Enable input to enable/disable the device with a logic signal and logic output POK that indicates when the output voltage has reached within 750mV of the input voltage. Three fault conditions are monitored: a zero-current condition, an overcurrent condition, and a thermal ove ...
... The MAX5923 provides an Enable input to enable/disable the device with a logic signal and logic output POK that indicates when the output voltage has reached within 750mV of the input voltage. Three fault conditions are monitored: a zero-current condition, an overcurrent condition, and a thermal ove ...
examination branch question bank
... ii. What would be the speed if the generated were wave wound? A 230 volts dc shunt motor takes 51 A at full load. Resistances of armature and field windings are 0.1ohm and 230 ohms respectively. Determine i) armature current ii. field current iii. back emf developed at full load? In case of an 8-pol ...
... ii. What would be the speed if the generated were wave wound? A 230 volts dc shunt motor takes 51 A at full load. Resistances of armature and field windings are 0.1ohm and 230 ohms respectively. Determine i) armature current ii. field current iii. back emf developed at full load? In case of an 8-pol ...
Variable-frequency drive

A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.