19 OPF Safety Program Manual - Electrical Safety (pdf)
... Electrical hazards pose a serious threat to worker safety. Many workers are unaware of the potential electrical hazards present in their work environment which makes them more vulnerable to the danger of electrocution and arc flash incidents. Unsafe equipment, unsafe acts, and working with live elec ...
... Electrical hazards pose a serious threat to worker safety. Many workers are unaware of the potential electrical hazards present in their work environment which makes them more vulnerable to the danger of electrocution and arc flash incidents. Unsafe equipment, unsafe acts, and working with live elec ...
Protect 2.33 2.0 - AEG Power Solutions
... After cut-off battery voltage and unit shut-down, battery voltage will normally increase significantly, above 12 V / battery (no load). Then, at no-load condition, battery voltage may start decreasing very slowly, and at safety level specified (activation) power supply will be turned off, to prevent ...
... After cut-off battery voltage and unit shut-down, battery voltage will normally increase significantly, above 12 V / battery (no load). Then, at no-load condition, battery voltage may start decreasing very slowly, and at safety level specified (activation) power supply will be turned off, to prevent ...
SWITCHGEAR
... The HMI must communicate with the pre-programmed CPU and act as the local master. Using the touch screen HMI, the user must be able to navigate back and forth between the elevation and one-line views of the LVS lineup. Utilizing the elevation or one-line screens, the user must be able to select (tou ...
... The HMI must communicate with the pre-programmed CPU and act as the local master. Using the touch screen HMI, the user must be able to navigate back and forth between the elevation and one-line views of the LVS lineup. Utilizing the elevation or one-line screens, the user must be able to select (tou ...
AP2552/ AP2553/ AP2552A/ AP2553A Description Pin Assignments
... Thermal protection prevents the IC from damage when the die temperature exceeds safe margins. This mainly occurs when heavy-overload or short-circuit faults are present for extended periods of time. The AP2552/53 AND AP2552A/53A implements a thermal sensing to monitor the operating junction temperat ...
... Thermal protection prevents the IC from damage when the die temperature exceeds safe margins. This mainly occurs when heavy-overload or short-circuit faults are present for extended periods of time. The AP2552/53 AND AP2552A/53A implements a thermal sensing to monitor the operating junction temperat ...
LTC3414 - 4A, 4MHz, Monolithic Synchronous Step-Down Regulator
... efficiency and component size. High frequency operation allows the use of smaller inductor and capacitor values. Operation at lower frequencies improves efficiency by reducing internal gate charge losses but requires larger inductance values and/or capacitance to maintain low output ripple voltage. ...
... efficiency and component size. High frequency operation allows the use of smaller inductor and capacitor values. Operation at lower frequencies improves efficiency by reducing internal gate charge losses but requires larger inductance values and/or capacitance to maintain low output ripple voltage. ...
THE TRACE ANALYSIS OF WATER FOR SELECTED METALLIC
... of time, and encouragement were invaluable during this endeavor. Dr. Henry M. Neumann and Dr. Frank O'Brien's assistance during the preparation of this manuscript is greatfully acknowledged. I also wish to acknowledge the instruction and counsel of Dr. Herman A. Flaschka during this course of study. ...
... of time, and encouragement were invaluable during this endeavor. Dr. Henry M. Neumann and Dr. Frank O'Brien's assistance during the preparation of this manuscript is greatfully acknowledged. I also wish to acknowledge the instruction and counsel of Dr. Herman A. Flaschka during this course of study. ...
2SK3541
... below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Prod ...
... below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Prod ...
June 2006 Dual Step-Up Converter Drives White LEDs with 1000:1
... (10µs on-time) allows a 1000:1 digital PWM dimming ratio with 100Hz PWM frequency—fast enough to avoid visible flicker. For instance, a combination of two LT3486s driving four LED strings (R-G-G-B) in a top-end display provides 1000:1 dimming while maintaining the true-color of the display even durin ...
... (10µs on-time) allows a 1000:1 digital PWM dimming ratio with 100Hz PWM frequency—fast enough to avoid visible flicker. For instance, a combination of two LT3486s driving four LED strings (R-G-G-B) in a top-end display provides 1000:1 dimming while maintaining the true-color of the display even durin ...
RT8110C - Richtek
... The RT8110C is a compact fixed-frequency PWM controller with integrated MOSFET drivers for single power rail synchronous single-phase buck converter. This part features an internal regulator that allows wide input voltage range operation. The RT8110C utilizes voltage-mode control with internal contr ...
... The RT8110C is a compact fixed-frequency PWM controller with integrated MOSFET drivers for single power rail synchronous single-phase buck converter. This part features an internal regulator that allows wide input voltage range operation. The RT8110C utilizes voltage-mode control with internal contr ...
Standard Available Coil Voltages
... Class A insulation: 105° C (221° F) temperature rise above an ambient of 25° C (77° F) Class B insulation: 130° C (266° F) temperature rise above an ambient of 25° C (77° F) Class F insulation: 155° C (311° F) temperature rise above an ambient of 25° C (77° F) Class H insulation: 180° C (356° F) tem ...
... Class A insulation: 105° C (221° F) temperature rise above an ambient of 25° C (77° F) Class B insulation: 130° C (266° F) temperature rise above an ambient of 25° C (77° F) Class F insulation: 155° C (311° F) temperature rise above an ambient of 25° C (77° F) Class H insulation: 180° C (356° F) tem ...
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.10, pp. 1586-1593
... Consider L1 of LCL filter is used. For a small ripple current the switching frequency of IGBT decreases which lower the losses. From equ(8) it can be seen that smaller ripple current results in higher inductance value which causes more core losses. So a current ripple of 20% is taken for compromisin ...
... Consider L1 of LCL filter is used. For a small ripple current the switching frequency of IGBT decreases which lower the losses. From equ(8) it can be seen that smaller ripple current results in higher inductance value which causes more core losses. So a current ripple of 20% is taken for compromisin ...
7 Practical Aspects of Installation Design
... (iii) Thermal insulation, Ci (iv) Disposition (method of installation) (v) Class of excess-current protection The cable rating should be modified for each of these effects as applicable. That is, when insulation conditions differ in more than one respect from those given in the appropriate table, a ...
... (iii) Thermal insulation, Ci (iv) Disposition (method of installation) (v) Class of excess-current protection The cable rating should be modified for each of these effects as applicable. That is, when insulation conditions differ in more than one respect from those given in the appropriate table, a ...
MAX921–MAX924 Ultra Low-Power, Single/Dual
... separate ground for the output driver, allowing operation with dual supplies ranging from ±1.25V to ±5.5V. Connect V- to GND when operating the MAX921 and the MAX924 from a single supply. The maximum supply voltage in this case is still 11V. For proper comparator operation, the input signal can swin ...
... separate ground for the output driver, allowing operation with dual supplies ranging from ±1.25V to ±5.5V. Connect V- to GND when operating the MAX921 and the MAX924 from a single supply. The maximum supply voltage in this case is still 11V. For proper comparator operation, the input signal can swin ...
4.5V TO 18V INPUT 10 PIN SYNCHRONOUS
... 2. Place a resistor from VDD to ENABLE. This causes more current to flow in the shutdown mode, but does not delay converter startup. If a resistor is used, the total current into the ENABLE pin should be limited to no ...
... 2. Place a resistor from VDD to ENABLE. This causes more current to flow in the shutdown mode, but does not delay converter startup. If a resistor is used, the total current into the ENABLE pin should be limited to no ...
Protective Devices Maintenance as it Applies to the Arc/Flash
... 1910.334(b)(2) Reclosing circuits after protective device operation “After a circuit is deenergized by a circuit protective device, the circuit may NOT be manually reenergized until it has been determined that the equipment and circuit can be safely reenergized. The repetitive manual reclosing of ci ...
... 1910.334(b)(2) Reclosing circuits after protective device operation “After a circuit is deenergized by a circuit protective device, the circuit may NOT be manually reenergized until it has been determined that the equipment and circuit can be safely reenergized. The repetitive manual reclosing of ci ...
Application Note AN-42 TinySwitch-PK Family
... allows the internal current limit to be selected between 3 levels, ILIMITPEAKred, ILIMITPEAK and ILIMITPEAKinc. The choice can be selected in the spreadsheet by entering RED, STD or INC in cell [B18]. Selecting the correct current limit level depends on the thermal environment, the amount of board a ...
... allows the internal current limit to be selected between 3 levels, ILIMITPEAKred, ILIMITPEAK and ILIMITPEAKinc. The choice can be selected in the spreadsheet by entering RED, STD or INC in cell [B18]. Selecting the correct current limit level depends on the thermal environment, the amount of board a ...
LED Driver with Integrated MOSFET General Description Features
... device to be used in lighting applications for MR16 and other SSL applications. The LED driver uses constantfrequency average current-mode control to control the duty cycle of the integrated switching MOSFET. The IC has all the necessary features required for MR16 lighting applications using LEDs. T ...
... device to be used in lighting applications for MR16 and other SSL applications. The LED driver uses constantfrequency average current-mode control to control the duty cycle of the integrated switching MOSFET. The IC has all the necessary features required for MR16 lighting applications using LEDs. T ...
MAX8533 Smallest, Most Reliable, 12V, Infiniband- Compliant Hot-Swap Controller General Description
... The MAX8533 is a single-port, 12V, IB-compliant versatile hot-swap controller IC designed for applications where a line card is inserted into a live backplane. The MAX8533 can be implemented in both IB Class I (nonisolated) and Class II (isolated) power-topology applications. Normally, when a line c ...
... The MAX8533 is a single-port, 12V, IB-compliant versatile hot-swap controller IC designed for applications where a line card is inserted into a live backplane. The MAX8533 can be implemented in both IB Class I (nonisolated) and Class II (isolated) power-topology applications. Normally, when a line c ...
PS-5006
... As well as ensuring accurate voltage balancing active circuits typically draw much lower levels of current in steady state and only require larger currents when the capacitor voltage goes out of balance. These characteristics make active voltage balancing circuits ideal for applications that charge ...
... As well as ensuring accurate voltage balancing active circuits typically draw much lower levels of current in steady state and only require larger currents when the capacitor voltage goes out of balance. These characteristics make active voltage balancing circuits ideal for applications that charge ...
Laboratory Test Analysis of Power Semiconductors
... Fig. 9: Characteristic curve of a GTO (same as standard thyristor) The negative non-conducting zone is not used during the laboratory test. The device works on the positive non-conducting zone if a positive anode-cathode voltage UAK is used but the ignition (= switch on) has not been done. This is t ...
... Fig. 9: Characteristic curve of a GTO (same as standard thyristor) The negative non-conducting zone is not used during the laboratory test. The device works on the positive non-conducting zone if a positive anode-cathode voltage UAK is used but the ignition (= switch on) has not been done. This is t ...
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.