The Oscilloscope: Operation and Applications
... the screen. Just like the voltage selector, there is a calibration knob in the middle of the control. Unless the vernier (calibration knob) is 'clicked' in to its most clockwise position, the time per division is unknown. When set to AUTO (automatic) triggering, the oscilloscope will always show a ...
... the screen. Just like the voltage selector, there is a calibration knob in the middle of the control. Unless the vernier (calibration knob) is 'clicked' in to its most clockwise position, the time per division is unknown. When set to AUTO (automatic) triggering, the oscilloscope will always show a ...
Earth fault relays with separate toroids Vigirex Merlin Gerin
... I∆n/2 alarm threshold Vigirex type AP relays have an alarm threshold that warns of a non-critical degradation of the insulation, leaving time to carry out preventive maintenance. The alarm threshold is set automatically at In∆/2, where I∆/n is the residual operating current. The alarm is indicated b ...
... I∆n/2 alarm threshold Vigirex type AP relays have an alarm threshold that warns of a non-critical degradation of the insulation, leaving time to carry out preventive maintenance. The alarm threshold is set automatically at In∆/2, where I∆/n is the residual operating current. The alarm is indicated b ...
DS92LV040A 4 Channel Bus LVDS Transceiver DS92L V040A
... BLVDS drivers and receivers are intended to be used in a differential backplane configuration. Transceivers or receivers are connected to the driver through a balanced media such as differential PCB traces. Typically, the characteristic differential impedance of the media (Zo) is in the range of 50Ω ...
... BLVDS drivers and receivers are intended to be used in a differential backplane configuration. Transceivers or receivers are connected to the driver through a balanced media such as differential PCB traces. Typically, the characteristic differential impedance of the media (Zo) is in the range of 50Ω ...
Comparison of Performance Measures for PV based Super
... the variation in voltage is quite large. This may lead to have adverse effects on DC loads or utility. To overcome this problem, a good and stable control module is necessary. To obtain a high efficient output voltage using solar panel a DC-DC converters1–3 were used. Several ongoing research works ...
... the variation in voltage is quite large. This may lead to have adverse effects on DC loads or utility. To overcome this problem, a good and stable control module is necessary. To obtain a high efficient output voltage using solar panel a DC-DC converters1–3 were used. Several ongoing research works ...
Model X – First Responder Guide 2016
... entering a hot zone. If the high voltage battery catches fire, is exposed to high heat, or is bent, twisted, cracked, or breached in any way, use large amounts of water to cool the battery. DO NOT extinguish with a small amount of water. Always establish or request an additional water supply. Batter ...
... entering a hot zone. If the high voltage battery catches fire, is exposed to high heat, or is bent, twisted, cracked, or breached in any way, use large amounts of water to cool the battery. DO NOT extinguish with a small amount of water. Always establish or request an additional water supply. Batter ...
Low-Cost Grid Connected Photovoltaic System Mahdi Salimi
... In recent years, lots of researches on grid connected photovoltaic systems has been done[7]-[14]. In [7] an efficient method for power factor correction of local loads with grid connected photovoltaic systems has been introduced. In [8] a simple control method has been proposed which is capable of l ...
... In recent years, lots of researches on grid connected photovoltaic systems has been done[7]-[14]. In [7] an efficient method for power factor correction of local loads with grid connected photovoltaic systems has been introduced. In [8] a simple control method has been proposed which is capable of l ...
Evaluates: MAX1848 MAX1848 Evaluation Kit General Description Features
... The MAX1848 EV kit contains a switching-regulator current-source circuit. The EV kit’s circuit is configured to drive three series-connected LEDs. The EV kit can be powered by a 2.6V to 5.5V DC source. The MAX1848 EV kit features programmable LED brightness by controlling LED current, overvoltage pr ...
... The MAX1848 EV kit contains a switching-regulator current-source circuit. The EV kit’s circuit is configured to drive three series-connected LEDs. The EV kit can be powered by a 2.6V to 5.5V DC source. The MAX1848 EV kit features programmable LED brightness by controlling LED current, overvoltage pr ...
PIC - Peripheral Interface Controllers
... The resonator is a central component in any PIC based circuit. There are two types of resonator used, a mechanical crystal arrangement or more commonly a resistor capacitor network housed in a ceramic. In both cases an astable output results and this is essentially a clock but not as we might common ...
... The resonator is a central component in any PIC based circuit. There are two types of resonator used, a mechanical crystal arrangement or more commonly a resistor capacitor network housed in a ceramic. In both cases an astable output results and this is essentially a clock but not as we might common ...
T. Nussbaumer, G. Gong, M. L. Heldwein, J. W. Kolar
... control loop for different operating points. The input line-to-line voltage is varied within the specified voltage range and the output power varied between rated load and 10% of the rated load. ...
... control loop for different operating points. The input line-to-line voltage is varied within the specified voltage range and the output power varied between rated load and 10% of the rated load. ...
Comparison of Low Power CMOS Voltage Reference Circuit Using
... Background: The voltage reference circuits are mainly used in the portable devices like mobiles, laptops for the long battery runtime. Due to this voltage reference circuits the circuit can be operated in the very low supply voltage because of this the power consumption of the circuit can be reduced ...
... Background: The voltage reference circuits are mainly used in the portable devices like mobiles, laptops for the long battery runtime. Due to this voltage reference circuits the circuit can be operated in the very low supply voltage because of this the power consumption of the circuit can be reduced ...
Circuits lab instruments
... together. The solderless breadboard shown at the right is a plastic-covered board with many holes into which you can insert the leads of components. Underneath the plastic cover are strips of metal that connect some of the holes to each other. By inserting component leads into the proper holes, you ...
... together. The solderless breadboard shown at the right is a plastic-covered board with many holes into which you can insert the leads of components. Underneath the plastic cover are strips of metal that connect some of the holes to each other. By inserting component leads into the proper holes, you ...
Electronic ballasts (EB) Technical Details - Vossloh
... The operation of a fluorescent lamp depends on a ballast that stabilises the lamp's preheat current after connection to the mains and, in conjunction with the starter, also supplies the required lamp ignition voltage after preheating. After ignition, the ballast then serves to limit the lamp current ...
... The operation of a fluorescent lamp depends on a ballast that stabilises the lamp's preheat current after connection to the mains and, in conjunction with the starter, also supplies the required lamp ignition voltage after preheating. After ignition, the ballast then serves to limit the lamp current ...
Synchronous Generator Line Synchronization
... computer and switch on the Sorenson power supply. Increase the commanded field current to 2.5-A using the software interface. Make sure that the field supply is working by noting the current on the computer screen. Next, switch on the source panel and increase the variac to 15%. At this point, the D ...
... computer and switch on the Sorenson power supply. Increase the commanded field current to 2.5-A using the software interface. Make sure that the field supply is working by noting the current on the computer screen. Next, switch on the source panel and increase the variac to 15%. At this point, the D ...
Short-Circuit Withstand Capability of Power Transformers
... capacities and increasing interconnections in power grids. These developments contribute to an increase in short-circuit capacity of power grids with negative consequences, especially for power transformers. Rising short-circuit currents in such strongly connected grids make the short-circuit withst ...
... capacities and increasing interconnections in power grids. These developments contribute to an increase in short-circuit capacity of power grids with negative consequences, especially for power transformers. Rising short-circuit currents in such strongly connected grids make the short-circuit withst ...
A new CMOS logarithmic current generator
... A logarithmic function is a nonlinear function in which the output is proportional to the logarithm of the input. The circuits performing such characteristics are widely used in many applications; these include but not limited to medical equipment, instrumentation, telecommunication, active filters, ...
... A logarithmic function is a nonlinear function in which the output is proportional to the logarithm of the input. The circuits performing such characteristics are widely used in many applications; these include but not limited to medical equipment, instrumentation, telecommunication, active filters, ...
MPQ2451-5/33-AEC1 - Monolithic Power System
... driver has its own UVLO protection with a rising threshold of about 2.4V and a falling threshold of about 300mV. During this UVLO, VSS resets to 0V. When the UVLO is removed, the controller enters soft-start. The dedicated internal-bootstrap regulator charges and regulates the bootstrap capacitor to ...
... driver has its own UVLO protection with a rising threshold of about 2.4V and a falling threshold of about 300mV. During this UVLO, VSS resets to 0V. When the UVLO is removed, the controller enters soft-start. The dedicated internal-bootstrap regulator charges and regulates the bootstrap capacitor to ...
floating measurements
... of defeating the oscilloscope’s protective grounding system— disconnecting “signal common” from earth, by either defeating the grounding system or using an isolation transformer. This technique allows accessible parts of the instrument such as chassis, cabinet, and connectors to assume the potential ...
... of defeating the oscilloscope’s protective grounding system— disconnecting “signal common” from earth, by either defeating the grounding system or using an isolation transformer. This technique allows accessible parts of the instrument such as chassis, cabinet, and connectors to assume the potential ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.