Techforum Newsletter August 2011
... load. This starting method typically allows a motor to develop 150% of its rated torque while the VFD is drawing less than 50% of its rated current from the mains in the low speed range. A VFD can be adjusted to produce a steady 150% starting torque from standstill right up to full speed. However, m ...
... load. This starting method typically allows a motor to develop 150% of its rated torque while the VFD is drawing less than 50% of its rated current from the mains in the low speed range. A VFD can be adjusted to produce a steady 150% starting torque from standstill right up to full speed. However, m ...
Analog Devices Welcomes Hittite Microwave Corporation
... two such comparators and additional output logic. Three output ports detect whether an analog input signal is above, below or between two reference levels supplied at its input as shown on the timing diagram herein. The outputs are single-ended negative logic. Incorporating two proven comparators at ...
... two such comparators and additional output logic. Three output ports detect whether an analog input signal is above, below or between two reference levels supplied at its input as shown on the timing diagram herein. The outputs are single-ended negative logic. Incorporating two proven comparators at ...
Doc - Greengineerz
... Status - The status LED indicates device status as indicated by the two tables above. For more information on resolving PCM faults see the PCM User Manual. Note that the No CAN Comm fault will not occur only if the device cannot see communicate with any other device, if the PCM and PDP can communica ...
... Status - The status LED indicates device status as indicated by the two tables above. For more information on resolving PCM faults see the PCM User Manual. Note that the No CAN Comm fault will not occur only if the device cannot see communicate with any other device, if the PCM and PDP can communica ...
Driving apparatus and method of three phase induction motor
... An emitter of the second NPN transistor Q3 and an emitter of the ?rst PNP transistor Q4 are connected in series to each other. When the photocoupler IS01 is in an ON state, the ?rst PNP transistor Q4 is turned off, so that a current ...
... An emitter of the second NPN transistor Q3 and an emitter of the ?rst PNP transistor Q4 are connected in series to each other. When the photocoupler IS01 is in an ON state, the ?rst PNP transistor Q4 is turned off, so that a current ...
a bidirectional switch based high-efficiency isolated
... be constant in this mode. 2) MODE 2(t1 to t2)[see Fig3b]: This mode starts when switch S5 switched OFF,now it works like series resonant coonverter. Capacitor banks used Cr1 and Cr2 starts to resonant. 3) MODE 3(t2 to t3)[see Fig 3c]: In this mode no power is transferred. It maintain frequency to co ...
... be constant in this mode. 2) MODE 2(t1 to t2)[see Fig3b]: This mode starts when switch S5 switched OFF,now it works like series resonant coonverter. Capacitor banks used Cr1 and Cr2 starts to resonant. 3) MODE 3(t2 to t3)[see Fig 3c]: In this mode no power is transferred. It maintain frequency to co ...
Lead-Acid Battery Desulfator
... desulfating batteries. Most of them were designed or developed in the last twenty years or so. Considering that lead-acid batteries have been around for more than a century, this is a relatively new innovation. Virtually all of the devices and patents I found have in common the use of some form of p ...
... desulfating batteries. Most of them were designed or developed in the last twenty years or so. Considering that lead-acid batteries have been around for more than a century, this is a relatively new innovation. Virtually all of the devices and patents I found have in common the use of some form of p ...
the flea - Acoustica.org.uk
... the high frequency components on the rails to ground and provide a local reservoir of energy storage to deal with peaks in demand. If we do this properly, and ensure the loop areas formed by these decoupling components are as small as is practically possible, the radiation drops dramatically. We're ...
... the high frequency components on the rails to ground and provide a local reservoir of energy storage to deal with peaks in demand. If we do this properly, and ensure the loop areas formed by these decoupling components are as small as is practically possible, the radiation drops dramatically. We're ...
Experiment8-INTRODUCTION TO OPAMPs(differential amp.)
... transistor. The models can be found in the bipolar.lib library. a. Form your circuit in Fig.5 in Pspice with the given values in Table1 and using the RC and RREF values calculated at preliminary work part1. Ground the both vin1 and vin2 b. Bias simulation. Simulate the circuit. Do a BIAS simulation ...
... transistor. The models can be found in the bipolar.lib library. a. Form your circuit in Fig.5 in Pspice with the given values in Table1 and using the RC and RREF values calculated at preliminary work part1. Ground the both vin1 and vin2 b. Bias simulation. Simulate the circuit. Do a BIAS simulation ...
MMBT3904LP Features Mechanical Data
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
L272 / L272A Dual Power Operational Amplifier L272 / L272 A —
... system whose failure to perform can be reasonably expected to intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in cause the failure of the life support device or system, or to affect its safety or effectiveness. accordanc ...
... system whose failure to perform can be reasonably expected to intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in cause the failure of the life support device or system, or to affect its safety or effectiveness. accordanc ...
Lab #11 Diodes - Northern Arizona University
... source with voltage Vturnon. For voltages less than Vturnon, the diode acts like an open circuit. ...
... source with voltage Vturnon. For voltages less than Vturnon, the diode acts like an open circuit. ...
Slide - Indico
... Active leakage current detection level is 5 times higher that the maximum leakage accepted in the specification The leakage may change depending on the machine/circuit conditions. It is essential to store all the measurements during the time to allow analysis and understanding of the variation ...
... Active leakage current detection level is 5 times higher that the maximum leakage accepted in the specification The leakage may change depending on the machine/circuit conditions. It is essential to store all the measurements during the time to allow analysis and understanding of the variation ...
Radio frequency signals are used for wireless
... Electromechanical isolation prevents RF circuit from leakage or from coupling significantly with actuation circuit. Electromechanical coupling is done electro statically through air because less power is required and is consumed only At the time of actuation MEMS (Micro-Electro-Mechanical-Switch) ac ...
... Electromechanical isolation prevents RF circuit from leakage or from coupling significantly with actuation circuit. Electromechanical coupling is done electro statically through air because less power is required and is consumed only At the time of actuation MEMS (Micro-Electro-Mechanical-Switch) ac ...
80-6420-10/Rev. A/12-98 - GE Healthcare Life Sciences
... circuit protection, 3.8 kg ground leakage detection, no-load detection ...
... circuit protection, 3.8 kg ground leakage detection, no-load detection ...
... obvious advantages over non‐renewable energy sources, such as coal, oil and nuclear energy. It is non‐polluting, reliable and can produce energy anywhere that there is sun shining, so its resources are not going to run out anytime. It even has advantages over other renewable energy sources, includin ...
Safety in electrical testing – service and repair HSE information sheet Introduction
... individual sleeves can be placed over conductors. This may be difficult where the conductor areas are small (connection size). In these cases, ensure that a safe system of work, incorporating the other relevant precautions listed below, is being followed. ■■ Where the dangerous conductors on the equ ...
... individual sleeves can be placed over conductors. This may be difficult where the conductor areas are small (connection size). In these cases, ensure that a safe system of work, incorporating the other relevant precautions listed below, is being followed. ■■ Where the dangerous conductors on the equ ...
Stray voltage
Stray voltage is the occurrence of electrical potential between two objects that ideally should not have any voltage difference between them. Small voltages often exist between two grounded objects in separate locations, due to normal current flow in the power system. Large voltages can appear on the enclosures of electrical equipment due to a fault in the electrical power system, such as a failure of insulation.