Integrated LC filter on silicon for DC-DC converter - HAL-LAAS
... is therefore to allow high power density while keeping low losses at the operating frequency. Integrating inductors on silicon for DC-DC converter applications has focused research efforts for more than 10 years now [9]-[12]. The difficulty remains in producing thick conductors to reduce conductive ...
... is therefore to allow high power density while keeping low losses at the operating frequency. Integrating inductors on silicon for DC-DC converter applications has focused research efforts for more than 10 years now [9]-[12]. The difficulty remains in producing thick conductors to reduce conductive ...
lds8620 preliminary
... In 1x mode, the device operates in linear mode and does not introduce switching noise back onto the supply. Recommended Layout In charge pump mode, the driver switches internally at a high frequency. It is recommended to minimize trace length to all four capacitors. A ground plane should cover the a ...
... In 1x mode, the device operates in linear mode and does not introduce switching noise back onto the supply. Recommended Layout In charge pump mode, the driver switches internally at a high frequency. It is recommended to minimize trace length to all four capacitors. A ground plane should cover the a ...
LT1638/LT1639 - 1.2MHz, 0.4V/us Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps
... The LT1638/LT1639 op amps operate on all single and split supplies with a total voltage of 2.5V to 44V drawing only 170μA of quiescent current per amplifier. These amplifiers are reverse battery protected and draw no current for reverse supply up to 18V. The input range of the LT1638/LT1639 includes b ...
... The LT1638/LT1639 op amps operate on all single and split supplies with a total voltage of 2.5V to 44V drawing only 170μA of quiescent current per amplifier. These amplifiers are reverse battery protected and draw no current for reverse supply up to 18V. The input range of the LT1638/LT1639 includes b ...
Project synopsis on BLINKING LEDs USING 8051
... The main principle of this circuit is to Blink LEDs with the help of 8051 Microcontroller. A program will be loaded to the RAM of 8051 and 2 LEDs will be connected to the microcontroller and power supply would also be provided and hence the LEDs will start blinking as per the program loaded. ...
... The main principle of this circuit is to Blink LEDs with the help of 8051 Microcontroller. A program will be loaded to the RAM of 8051 and 2 LEDs will be connected to the microcontroller and power supply would also be provided and hence the LEDs will start blinking as per the program loaded. ...
AT4K 2500 Watt Antenna Tuner AT4K 2500 Watt Antenna
... Notes: 1. A SWR of 1:1 is best, but an SWR as high as 2:1 may be acceptable. Check your transmitter/amplifier manual for details. 2. If you cannot get an acceptable SWR, lengthen or shorten your antenna and/or feedlines and retune.\ 3. If you get low SWR readings at more than one setting, use the se ...
... Notes: 1. A SWR of 1:1 is best, but an SWR as high as 2:1 may be acceptable. Check your transmitter/amplifier manual for details. 2. If you cannot get an acceptable SWR, lengthen or shorten your antenna and/or feedlines and retune.\ 3. If you get low SWR readings at more than one setting, use the se ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Abstract : The distribution transformer monitoring system is composed of Transformer Terminal Unit (TTU), GPRS wireless communication network and master station. TTU is installed in the transformer, which mainly accomplishes data collection, analysis and record, pops up alarm information in time whe ...
... Abstract : The distribution transformer monitoring system is composed of Transformer Terminal Unit (TTU), GPRS wireless communication network and master station. TTU is installed in the transformer, which mainly accomplishes data collection, analysis and record, pops up alarm information in time whe ...
無效功率
... EX 10.2 Power Calculations Involving Household Appliances The branch circuit supplying the outlets in a typical home kitchen is wired with #12 conductor and is protected by either a 20 A fuse or a 20 A circuit breaker. Assume that the following 120 V appliances are in operation at the same time: a ...
... EX 10.2 Power Calculations Involving Household Appliances The branch circuit supplying the outlets in a typical home kitchen is wired with #12 conductor and is protected by either a 20 A fuse or a 20 A circuit breaker. Assume that the following 120 V appliances are in operation at the same time: a ...
GNS ESI RF2174
... the operating band. Essentially, the bias is fed to this pin through a short microstrip. A bypass capacitor sets the inductance seen by the part, so placement of the bypass cap can affect the frequency of the gain peak. This supply should be bypassed individually with 100pF capacitors before being c ...
... the operating band. Essentially, the bias is fed to this pin through a short microstrip. A bypass capacitor sets the inductance seen by the part, so placement of the bypass cap can affect the frequency of the gain peak. This supply should be bypassed individually with 100pF capacitors before being c ...
Laboratory 7 Bipolar Transistor Biasing and Small Signal Behavior
... This is a linear relationship between VCE and IC. The load line can be superimposed on a set of VCE-IC transistor characteristics. The slope of the DC load line is -1/(RC+RE) ⎯ it intersects the horizontal axis at VCE = VCC and the vertical axis at IC = VCC/(RC + RE). A transistor amplifier is typic ...
... This is a linear relationship between VCE and IC. The load line can be superimposed on a set of VCE-IC transistor characteristics. The slope of the DC load line is -1/(RC+RE) ⎯ it intersects the horizontal axis at VCE = VCC and the vertical axis at IC = VCC/(RC + RE). A transistor amplifier is typic ...
Transistors_TG_ver4
... current by using the field effect. Students explore how the gate of a junction field effect transistor (JFET) turns an electric current through a semiconductor on and off by changing the voltage. Students learn how to use two transistors to build a logic AND gate as well as a logic OR gate. In addit ...
... current by using the field effect. Students explore how the gate of a junction field effect transistor (JFET) turns an electric current through a semiconductor on and off by changing the voltage. Students learn how to use two transistors to build a logic AND gate as well as a logic OR gate. In addit ...
LMx31x Precision Voltage-to-Frequency Converters (Rev. C)
... The operation of these blocks is best understood by going through the operating cycle of the basic V-to-F converter, Figure 13, which consists of the simplified block diagram of the LMx31 and the various resistors and capacitors connected to it. The voltage comparator compares a positive input volta ...
... The operation of these blocks is best understood by going through the operating cycle of the basic V-to-F converter, Figure 13, which consists of the simplified block diagram of the LMx31 and the various resistors and capacitors connected to it. The voltage comparator compares a positive input volta ...
Core Balance Specify Document
... As you can see the performance specified is at 10 or 20 times rated current, this does not ensure that the Current Transformer will generate sufficient output to operate a typical core balance protection primary sensitivity of typical 250mA or 500mA. This is due to the fact that typical GOSS materia ...
... As you can see the performance specified is at 10 or 20 times rated current, this does not ensure that the Current Transformer will generate sufficient output to operate a typical core balance protection primary sensitivity of typical 250mA or 500mA. This is due to the fact that typical GOSS materia ...
Joule thief
... turned on diverting the base current of the switching transistor Q1, impeding the oscillation and prevents the voltage across capacitor C1 from rising even further. When the voltage across C1 drops below the threshold voltage Q2 turns off, allowing the oscillation to happen again. The switching frequ ...
... turned on diverting the base current of the switching transistor Q1, impeding the oscillation and prevents the voltage across capacitor C1 from rising even further. When the voltage across C1 drops below the threshold voltage Q2 turns off, allowing the oscillation to happen again. The switching frequ ...
MAX1954A Low-Cost, Current-Mode PWM Buck Controller with Foldback Current Limit General Description
... open-loop comparator compares the integrated voltagefeedback signal against the amplified current-sense signal plus the slope compensation ramp, which is summed into the main PWM comparator to preserve inner-loop stability and eliminate inductor staircasing. At each rising edge of the internal clock ...
... open-loop comparator compares the integrated voltagefeedback signal against the amplified current-sense signal plus the slope compensation ramp, which is summed into the main PWM comparator to preserve inner-loop stability and eliminate inductor staircasing. At each rising edge of the internal clock ...
Paper - Asee peer logo
... shunt motors. Figure 5a shows the schematic diagram for the lab set-up. Through this lab, students can practically relate with how the motor rotation is made possible through the interaction of two magnetic fields (field coils and armature coils). The concepts of Lorentz force and Faraday’s law of e ...
... shunt motors. Figure 5a shows the schematic diagram for the lab set-up. Through this lab, students can practically relate with how the motor rotation is made possible through the interaction of two magnetic fields (field coils and armature coils). The concepts of Lorentz force and Faraday’s law of e ...
PE12V40 Rechargeable Sealed Lead Acid Battery
... Discharge —4ºF (—20ºC) to 122ºF (50ºC) Storage —4ºF (—20ºC) to 104ºF (40ºC) ...
... Discharge —4ºF (—20ºC) to 122ºF (50ºC) Storage —4ºF (—20ºC) to 104ºF (40ºC) ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.