Transformerless Power Supply Design
... Zener diode). This is because the Zener diode will only generate the Zener voltage output whenever a reverse voltage is applied to it. Full wave rectification ensures that Vin is positive, which allows the Zener voltage to be generated. If full wave rectification were added after the Zener diode (be ...
... Zener diode). This is because the Zener diode will only generate the Zener voltage output whenever a reverse voltage is applied to it. Full wave rectification ensures that Vin is positive, which allows the Zener voltage to be generated. If full wave rectification were added after the Zener diode (be ...
Geroge Fischer
... to the power supply, the following points should be carefully checked: • correct voltage • correct connection b) Adjustments If a complete George Fischer valve with actuator is delivered, no additional adjustments are needed (always delivered in "Open" position). If an actuator is repaired or instal ...
... to the power supply, the following points should be carefully checked: • correct voltage • correct connection b) Adjustments If a complete George Fischer valve with actuator is delivered, no additional adjustments are needed (always delivered in "Open" position). If an actuator is repaired or instal ...
AN2454
... some instability if the filter capacitance is too small. The reason for this is as follows: energy transferred from the primary to the secondary side is small if the output pulse is prematurely terminated during the switching cycle. If this happens for several pulses, the feedback loop increases the ...
... some instability if the filter capacitance is too small. The reason for this is as follows: energy transferred from the primary to the secondary side is small if the output pulse is prematurely terminated during the switching cycle. If this happens for several pulses, the feedback loop increases the ...
3.4 Bipolar Transistor Configurations
... The Bipolar Transistor basic construction consists of two PN-junctions producing three connecting terminals with each terminal being given a name to identify it from the other two. These three terminals are known and labelled as the Emitter ( E ), the Base ( B ) and the Collector ( C ) respectively. ...
... The Bipolar Transistor basic construction consists of two PN-junctions producing three connecting terminals with each terminal being given a name to identify it from the other two. These three terminals are known and labelled as the Emitter ( E ), the Base ( B ) and the Collector ( C ) respectively. ...
ACS712
... Sensitivity (Sens). The change in sensor output in response to a 1 A change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity (G / A) and the linear IC amplifier gain (mV/G). The linear IC amplifier gain is programmed at the factory to optimize the sen ...
... Sensitivity (Sens). The change in sensor output in response to a 1 A change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity (G / A) and the linear IC amplifier gain (mV/G). The linear IC amplifier gain is programmed at the factory to optimize the sen ...
Switching of capacitor banks using a SynchroTeq
... SynchroTeq products are perfectly adapted for fast switching of capacitor banks and filters. In many applications such as static VAR compensation (SVC) and STATCOM (static compensators), very rapid switching sequences are required where the operation of the CB cannot be blocked due to the presence o ...
... SynchroTeq products are perfectly adapted for fast switching of capacitor banks and filters. In many applications such as static VAR compensation (SVC) and STATCOM (static compensators), very rapid switching sequences are required where the operation of the CB cannot be blocked due to the presence o ...
Weidmann Diagnostic Solutions Electrostatic Precipitator
... Electrostatic precipitators (ESPs) are critical to the clean delivery of electric power as well as controlling particulate emissions from various industrial processes. The transformer/rectifier is a major component of the power supply system to the ESPs. The failure of a transformer/rectifier can li ...
... Electrostatic precipitators (ESPs) are critical to the clean delivery of electric power as well as controlling particulate emissions from various industrial processes. The transformer/rectifier is a major component of the power supply system to the ESPs. The failure of a transformer/rectifier can li ...
Improved Spice Models of Aluminum Electrolytic - Digi
... path quickly changes from a loop to a stripline. Capacitor manufacturers usually incorporate multiple tab pairs on capacitors of diameter greater than 25 mm. But this is done to lower the effective foil resistance, not the inductance. There is some improvement of the inductance, but most of this ef ...
... path quickly changes from a loop to a stripline. Capacitor manufacturers usually incorporate multiple tab pairs on capacitors of diameter greater than 25 mm. But this is done to lower the effective foil resistance, not the inductance. There is some improvement of the inductance, but most of this ef ...
EE 1332833
... The transformers are designed and used for different types loads, at rated frequency and balanced supply voltage. Now a day’s energy efficiency of electrical load device increases with solid-state electronics. But, due to the use of non-linear loads such as computers, variable speed drives in heatin ...
... The transformers are designed and used for different types loads, at rated frequency and balanced supply voltage. Now a day’s energy efficiency of electrical load device increases with solid-state electronics. But, due to the use of non-linear loads such as computers, variable speed drives in heatin ...
LTC4415 - Dual 4A Ideal Diodes with Adjustable Current Limit
... Note 4: The LTC4415 includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may i ...
... Note 4: The LTC4415 includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may i ...
calculated vs. actual short circuit currents for vrla batteries
... Each battery was constant current discharged at 25oC at 4X its rated AH capacity for 20 seconds with voltage and current readings taken at 0.1 second intervals and at 20X for 5 seconds at 0.05 second intervals, per the IEC standard. The voltage and current was recorded using an Agilent 34970 data-lo ...
... Each battery was constant current discharged at 25oC at 4X its rated AH capacity for 20 seconds with voltage and current readings taken at 0.1 second intervals and at 20X for 5 seconds at 0.05 second intervals, per the IEC standard. The voltage and current was recorded using an Agilent 34970 data-lo ...
MAX1575 White LED 1x/1.5x Charge Pump for Main and Sub-Displays General Description
... The MAX1575 charge pump drives up to four white LEDs in the main display and up to two white LEDs in the sub-display with regulated constant current for uniform intensity. By utilizing adaptive 1x/1.5x chargepump modes and very-low-dropout current regulators, it achieves high efficiency over the ful ...
... The MAX1575 charge pump drives up to four white LEDs in the main display and up to two white LEDs in the sub-display with regulated constant current for uniform intensity. By utilizing adaptive 1x/1.5x chargepump modes and very-low-dropout current regulators, it achieves high efficiency over the ful ...
Power Flow Control by Using DPFC
... series out-put terminals of the SSSC and the shunt output terminals of the STATCOM . The converter in series with the line provides the main function of the UPFC by injecting a four-quadrant voltage with controllable magnitude and phase. The injected voltage essentially acts as a synchronous ac-volt ...
... series out-put terminals of the SSSC and the shunt output terminals of the STATCOM . The converter in series with the line provides the main function of the UPFC by injecting a four-quadrant voltage with controllable magnitude and phase. The injected voltage essentially acts as a synchronous ac-volt ...
Short circuit test code TF D8 clause 12 and annex xx
... Note 2 -- When the primary winding is connected to the supply, either one or both of the secondary windings, or either one or both of the common or tertiary windings for auto-transformers, may be short-circuited for the test. Note 3 -- For auto-transformers with tertiary windings, it may also be ne ...
... Note 2 -- When the primary winding is connected to the supply, either one or both of the secondary windings, or either one or both of the common or tertiary windings for auto-transformers, may be short-circuited for the test. Note 3 -- For auto-transformers with tertiary windings, it may also be ne ...
LT1513/LT1513-2 - Linear Technology
... feedback circuit for accurately controlling output current of a flyback or SEPIC (Single-Ended Primary Inductance Converter) topology charger. These topologies allow the current sense circuit to be ground referred and completely separated from the battery itself, simplifying battery switching and sy ...
... feedback circuit for accurately controlling output current of a flyback or SEPIC (Single-Ended Primary Inductance Converter) topology charger. These topologies allow the current sense circuit to be ground referred and completely separated from the battery itself, simplifying battery switching and sy ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.