NCP1255GEVB NCP1255 25W Evaluation Board User's Manual
... operations, the switching frequency of this peak-current mode control circuit is 65 kHz. When the power demand goes up, the controller increases the peak current setpoint until it reaches the upper limit (0.8 V over Rsense, no opp). At this point, the output power demand increase can only be answere ...
... operations, the switching frequency of this peak-current mode control circuit is 65 kHz. When the power demand goes up, the controller increases the peak current setpoint until it reaches the upper limit (0.8 V over Rsense, no opp). At this point, the output power demand increase can only be answere ...
AN2504
... Note that voltage detector output state simply indicates if the supply voltage is above or below a specific threshold, which can be used for early power fail warning. However microprocessors' inputs require some minimum input pulse width to register the change of signal on the logical input. In this ...
... Note that voltage detector output state simply indicates if the supply voltage is above or below a specific threshold, which can be used for early power fail warning. However microprocessors' inputs require some minimum input pulse width to register the change of signal on the logical input. In this ...
SML-212YT,SML-212WTA,SML-212DT,SML-212U2TA,SML
... (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endange ...
... (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endange ...
Specification Status: Released PolyZen GENERAL DESCRIPTION
... VINT Max: VINT Max relates to the voltage across the PPTC portion of the PolyZen device (VIN-VOUT). VINT Max is defined as the voltage (VIN-VOUT) at which typical qualification devices (98% devices, 95% confidence) survived at least 100 trip cycles and 24 hours trip endurance at the specified voltag ...
... VINT Max: VINT Max relates to the voltage across the PPTC portion of the PolyZen device (VIN-VOUT). VINT Max is defined as the voltage (VIN-VOUT) at which typical qualification devices (98% devices, 95% confidence) survived at least 100 trip cycles and 24 hours trip endurance at the specified voltag ...
Electric Equipment Guarding and Workspaces
... pain and slight burns, a large voltage can cause severe burns and stop the heart. A minor shock may cause a large injury if a surprised worker takes a fall. To avoid the risk of accidental shock, live electrical components operating at 50 volts or more must be guarded with covers or other permanent ...
... pain and slight burns, a large voltage can cause severe burns and stop the heart. A minor shock may cause a large injury if a surprised worker takes a fall. To avoid the risk of accidental shock, live electrical components operating at 50 volts or more must be guarded with covers or other permanent ...
MODELS OF EXCITATION SYSTEMS
... For step response simulations, software Digsilent PowerFactory 14.1 (Educational license), have been used as a referent program. In this paper, some of preliminary results of simulations are presented, as well as automatic voltage regulator structure, comparison of step response simulation and measu ...
... For step response simulations, software Digsilent PowerFactory 14.1 (Educational license), have been used as a referent program. In this paper, some of preliminary results of simulations are presented, as well as automatic voltage regulator structure, comparison of step response simulation and measu ...
A New Mitigation Strategy for
... technology will deploy upon sensing a temperature beyond its preset limit and electrically disconnect, providing protection against catastrophic failures by rendering the capacitor electrically open. ECI’s UL certified 5MPF series AC capacitors employ FuseacTM technology at 300, 600 and 900vac ratin ...
... technology will deploy upon sensing a temperature beyond its preset limit and electrically disconnect, providing protection against catastrophic failures by rendering the capacitor electrically open. ECI’s UL certified 5MPF series AC capacitors employ FuseacTM technology at 300, 600 and 900vac ratin ...
Design and Implementation of Carrier Based Sinusoidal PWM
... source and current source inverters. A voltage–fed inverter (VFI) or more generally a voltage–source inverter (VSI) is one in which the dc source has small or negligible impedance. The voltage at the input terminals is constant. A current–source inverter (CSI) is fed with adjustable current from the ...
... source and current source inverters. A voltage–fed inverter (VFI) or more generally a voltage–source inverter (VSI) is one in which the dc source has small or negligible impedance. The voltage at the input terminals is constant. A current–source inverter (CSI) is fed with adjustable current from the ...
Data interface - STMicroelectronics
... To improve the ESD robustness of this device above specified ±2 kV/HBM external blocking capacitors must be used. Nevertheless the max. energy which can be clamped by this device should not exceeds 0.2mJ for each pin. An equivalent input diagram for calculation can be seen in Figure 11. ESD discharg ...
... To improve the ESD robustness of this device above specified ±2 kV/HBM external blocking capacitors must be used. Nevertheless the max. energy which can be clamped by this device should not exceeds 0.2mJ for each pin. An equivalent input diagram for calculation can be seen in Figure 11. ESD discharg ...
High-Efficiency Negative Charge-Pump Circuit for WLED Backlights
... Abstract: Positive charge pumps, also known as inductor-less DC/DC converters, are very common in white LED drivers. They are less expensive and simpler to use, but they usually achieve a lower efficiency than inductor-based boost circuits. In this paper, we describe a novel negative charge-pump des ...
... Abstract: Positive charge pumps, also known as inductor-less DC/DC converters, are very common in white LED drivers. They are less expensive and simpler to use, but they usually achieve a lower efficiency than inductor-based boost circuits. In this paper, we describe a novel negative charge-pump des ...
Design and Simulation of Solar Powered B-4
... ABSTRACT In this paper solar powered B-4 inverter for induction motor is presented. The speed of an induction motor is controlled by three phase inverter normally have six switches. Instead of using six switches the performance of induction motor is realized by four switch three phase inverter (FSTP ...
... ABSTRACT In this paper solar powered B-4 inverter for induction motor is presented. The speed of an induction motor is controlled by three phase inverter normally have six switches. Instead of using six switches the performance of induction motor is realized by four switch three phase inverter (FSTP ...
Evaluates: MAX1507/MAX1508 MAX1507/MAX1508 Evaluation Kit General Description Features
... and thermal control loops to facilitate charging of a single Li+ cell and to protect the battery. When a Li+ battery with a cell voltage below 2.5V is inserted, the charger enters the prequalification stage where it precharges that cell with 10% of the user-programmed fast-charge current. Once the c ...
... and thermal control loops to facilitate charging of a single Li+ cell and to protect the battery. When a Li+ battery with a cell voltage below 2.5V is inserted, the charger enters the prequalification stage where it precharges that cell with 10% of the user-programmed fast-charge current. Once the c ...
Modular Cascaded H-Bridge Multilevel PV Inverter with
... power point tracking control scheme is applied to both single- and three-phase multilevel inverters, which allows independent control of each dc-link voltage. For three-phase gridconnected applications, PV mismatches may introduce unbalanced supplied power, leading to unbalanced grid current. To sol ...
... power point tracking control scheme is applied to both single- and three-phase multilevel inverters, which allows independent control of each dc-link voltage. For three-phase gridconnected applications, PV mismatches may introduce unbalanced supplied power, leading to unbalanced grid current. To sol ...
MAX9021/2/4 DS
... The MAX9021/MAX9022/MAX9024 single/dual/quad comparators are optimized for low-power consumption while still providing a fast output response. They are designed for single-supply applications from 2.5V to 5.5V, but can also operate from dual supplies. These comparators have a 3µs propagation delay a ...
... The MAX9021/MAX9022/MAX9024 single/dual/quad comparators are optimized for low-power consumption while still providing a fast output response. They are designed for single-supply applications from 2.5V to 5.5V, but can also operate from dual supplies. These comparators have a 3µs propagation delay a ...
Aircraft Magneto Systems
... magnetism, electricity and electromagnetic induction are necessary in order to properly understand the operation of the magneto. Stated in simple form, a current of electricity is a movement of electrons; this electricity is in a conductor (usually wire made of copper) in the form of electrons, and ...
... magnetism, electricity and electromagnetic induction are necessary in order to properly understand the operation of the magneto. Stated in simple form, a current of electricity is a movement of electrons; this electricity is in a conductor (usually wire made of copper) in the form of electrons, and ...
MX Programmable Power Source flyer
... 200 V DC output range; the 300 V AC range becomes 400 V DC. For applications requiring more than 300 V L-N (or 520 V L-L), the -HV1 output transformer option provides an additional 400 V L-N and 693 V L-L output range for use in AC mode only. ...
... 200 V DC output range; the 300 V AC range becomes 400 V DC. For applications requiring more than 300 V L-N (or 520 V L-L), the -HV1 output transformer option provides an additional 400 V L-N and 693 V L-L output range for use in AC mode only. ...
What is an electric shock?
... a SELV supply is low enough that under normal conditions a person can safely come into contact with it without risk of electrical shock. The extra safety features built into Class I and Class II appliances are therefore not required. For medical devices, compliance with Class III is not considered s ...
... a SELV supply is low enough that under normal conditions a person can safely come into contact with it without risk of electrical shock. The extra safety features built into Class I and Class II appliances are therefore not required. For medical devices, compliance with Class III is not considered s ...
STUDY AND SIMULATION OF THE UNIFIED POWER FLOW
... SYSTEMS toolboxes is developed for simulation of UPFC. This developed simulation technique is found to be very effective and it enables us to study and investigate how the UPFC can affect the transmission system using the series voltage and shunt current injection. It is possible to demonstrate with ...
... SYSTEMS toolboxes is developed for simulation of UPFC. This developed simulation technique is found to be very effective and it enables us to study and investigate how the UPFC can affect the transmission system using the series voltage and shunt current injection. It is possible to demonstrate with ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.