MAX8848Y/MAX8848Z High-Performance Negative Charge Pump EVALUATION KIT AVAILABLE
... The MAX8848Y/MAX8848Z negative charge pumps drive up to 7 white LEDs with regulated constant current for display backlight applications. By utilizing an inverting charge pump and extremely low-dropout adaptive current regulators, these ICs achieve very high efficiency over the full 1-cell Li+ batter ...
... The MAX8848Y/MAX8848Z negative charge pumps drive up to 7 white LEDs with regulated constant current for display backlight applications. By utilizing an inverting charge pump and extremely low-dropout adaptive current regulators, these ICs achieve very high efficiency over the full 1-cell Li+ batter ...
THE NEW SOURCE OF POWER
... telephone: (+613) 9354 9133 facsimile: (+613) 9354 9233 e-mail: sales@grouptechnologies.com.au ...
... telephone: (+613) 9354 9133 facsimile: (+613) 9354 9233 e-mail: sales@grouptechnologies.com.au ...
Low Noise Wide Tuning Range Quadrature Ring Oscillator for Multi
... frequency is 10 GHz, the tuning range is only 16% of the central frequency. The reason for the reduction in tuning range is small gain of CML inverters and usage of active inductors to boost it, resulting in the narrowband operation. A two-stage differential inverter was also proposed [4] to impleme ...
... frequency is 10 GHz, the tuning range is only 16% of the central frequency. The reason for the reduction in tuning range is small gain of CML inverters and usage of active inductors to boost it, resulting in the narrowband operation. A two-stage differential inverter was also proposed [4] to impleme ...
VIII .Typical Transmission Line Surge Arrester Installation
... Abstract— Lightning strikes to overhead transmission lines are a usual reason for unscheduled supply interruption in the modern power system, In an effort to maintain failure rates in a low level, providing high power quality and avoiding damages and disturbances, plenty of lightning performance est ...
... Abstract— Lightning strikes to overhead transmission lines are a usual reason for unscheduled supply interruption in the modern power system, In an effort to maintain failure rates in a low level, providing high power quality and avoiding damages and disturbances, plenty of lightning performance est ...
A 2-V 2-GHz BJT Variable Frequency Oscillator - Solid
... at the lower end of the frequency tuning range. When the VFO’s oscillation frequency is increased by decreasing the corresponding VIC’s is also improved. The ranges from three to five for 1.5–1.6 GHz oscillation frequency, from five to eight for 1.6–1.8 GHz oscillation frequency, and from eight to t ...
... at the lower end of the frequency tuning range. When the VFO’s oscillation frequency is increased by decreasing the corresponding VIC’s is also improved. The ranges from three to five for 1.5–1.6 GHz oscillation frequency, from five to eight for 1.6–1.8 GHz oscillation frequency, and from eight to t ...
D.S. Lymar, T.C. Neugebauer, and D.J. Perreault, “Coupled-Magnetic Filters with Adaptive Inductance Cancellation,” 2005 IEEE Power Electronics Specialists Conference , June 2005, pp. 590-600.
... one branch of the T-network (the LC branch) appears to have a negative inductance. It must be stressed that this does not violate any physical laws since the inductance seen across any two terminals of the T-model is clearly positive. Thus, when LC of Fig. 3 is made slightly negative, the trimming i ...
... one branch of the T-network (the LC branch) appears to have a negative inductance. It must be stressed that this does not violate any physical laws since the inductance seen across any two terminals of the T-model is clearly positive. Thus, when LC of Fig. 3 is made slightly negative, the trimming i ...
LT5525 - High Linearity, Low Power Downconverting Mixer.
... The LT®5525 is a low power broadband mixer optimized for high linearity applications such as point-to-point data transmission, high performance radios and wireless infrastructure systems. The device includes an internally 50Ω matched high speed LO amplifier driving a double-balanced active mixer cor ...
... The LT®5525 is a low power broadband mixer optimized for high linearity applications such as point-to-point data transmission, high performance radios and wireless infrastructure systems. The device includes an internally 50Ω matched high speed LO amplifier driving a double-balanced active mixer cor ...
BA1117FP
... Connecting of the power supply in reverse polarity can damage IC. Take precautions when connecting the power supply lines. An external direction diode can be added. (3). Power supply lines Design PCB layout pattern to provide low impedance GND and supply lines. To obtain a low noise ground and suppl ...
... Connecting of the power supply in reverse polarity can damage IC. Take precautions when connecting the power supply lines. An external direction diode can be added. (3). Power supply lines Design PCB layout pattern to provide low impedance GND and supply lines. To obtain a low noise ground and suppl ...
BA18BC0FP
... P-N junctions are formed at the intersection of these P layers with the N layers of other elements, creating a parasitic diode or transistor. For example, the relation between each potential is as follows: When GND > PIN A and GND > PIN B, the P-N junction operates as a parasitic diode. When GND > P ...
... P-N junctions are formed at the intersection of these P layers with the N layers of other elements, creating a parasitic diode or transistor. For example, the relation between each potential is as follows: When GND > PIN A and GND > PIN B, the P-N junction operates as a parasitic diode. When GND > P ...
A Comparative Study of Switching Loss in IGBT and
... Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Because of this, it needs to be connected to an appropriate fast recovery diode when necessary [2]. Even though it can driv ...
... Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Because of this, it needs to be connected to an appropriate fast recovery diode when necessary [2]. Even though it can driv ...
Photoflash Capacitor Charger with IGBT Driver A8438
... Ideally, the charging time is not affected by transformer primary inductance. In practice, however, it is recommended that a primary inductance be chosen between 6 μH and 20 μH. When LPrimary is much lower than 6 μH, the converter operates at higher frequency, which increases switching loss proporti ...
... Ideally, the charging time is not affected by transformer primary inductance. In practice, however, it is recommended that a primary inductance be chosen between 6 μH and 20 μH. When LPrimary is much lower than 6 μH, the converter operates at higher frequency, which increases switching loss proporti ...
10 Hints to Improving Throughput with your Power Supply
... Improving test throughput starts with using faster power supplies. Command processing time is a key parameter governing a power supply’s speed as it affects virtually all aspects of its use under automated control. Shorter command processing time can signiicantly increase throughput by taking second ...
... Improving test throughput starts with using faster power supplies. Command processing time is a key parameter governing a power supply’s speed as it affects virtually all aspects of its use under automated control. Shorter command processing time can signiicantly increase throughput by taking second ...
A balancing and monitoring system for battery cell stacks in
... high power resistor to be able to dissipate the energy from the battery charger when the battery is full. The circuit set-up for this method is illustrated in Figure 3. ...
... high power resistor to be able to dissipate the energy from the battery charger when the battery is full. The circuit set-up for this method is illustrated in Figure 3. ...
lx1744 dual output boost led driver/lcd bias
... efficiency, reduced board size, and minimal cost making it ideal for PDA and digital camera applications. Utilizing an internal N-Channel FET for LCD Bias generation minimizes PCB board space, whereas the use of an external N-Channel MOSFET for the higher current LED regulator portion results in max ...
... efficiency, reduced board size, and minimal cost making it ideal for PDA and digital camera applications. Utilizing an internal N-Channel FET for LCD Bias generation minimizes PCB board space, whereas the use of an external N-Channel MOSFET for the higher current LED regulator portion results in max ...
ICM7555, ICM7556 Datasheet
... ICM7556 is a dual ICM7555, with the two timers operating independently of each other, sharing only V+ and GND. In the one shot mode, the pulse width of each circuit is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and ...
... ICM7556 is a dual ICM7555, with the two timers operating independently of each other, sharing only V+ and GND. In the one shot mode, the pulse width of each circuit is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and ...
Recloser Application Notes - Association of Municipal Electricity
... Automatic Circuit Reclosers (ACR) have been around in one form or another for over half a century. Studies of faults on overhead distribution lines have shown that most are transient and can be cleared without interrupting customer supply. This is especially true of areas that experience lightning a ...
... Automatic Circuit Reclosers (ACR) have been around in one form or another for over half a century. Studies of faults on overhead distribution lines have shown that most are transient and can be cleared without interrupting customer supply. This is especially true of areas that experience lightning a ...
this manual (in PDF format) refer to product model and version that
... 3.3.3 - Motor phase current setting by means of DIP-SWITCHES up to eight possible values. 3.3.4 - Four operation modes (wave, full step, half step, quarter step) selected with DIP-SWITCHES. 3.3.5 - Possibility to switch off motor current with external logic signal (CURRENT OFF). 3.3.6 - Electronic p ...
... 3.3.3 - Motor phase current setting by means of DIP-SWITCHES up to eight possible values. 3.3.4 - Four operation modes (wave, full step, half step, quarter step) selected with DIP-SWITCHES. 3.3.5 - Possibility to switch off motor current with external logic signal (CURRENT OFF). 3.3.6 - Electronic p ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)