the kw107 supermatch atu
... If 400-600 ohm balanced feeders are used for both 80/40 metre antenna and the 10/15/10 metre antenna, appropriate knife switches (DPST) must be used to disconnect the unused feeders. DO NOT OPERATE the KW107 Supermatch with CONNECTIONS MADE TO BOTH OUTPUTS. When a coaxial feeder is used for one ante ...
... If 400-600 ohm balanced feeders are used for both 80/40 metre antenna and the 10/15/10 metre antenna, appropriate knife switches (DPST) must be used to disconnect the unused feeders. DO NOT OPERATE the KW107 Supermatch with CONNECTIONS MADE TO BOTH OUTPUTS. When a coaxial feeder is used for one ante ...
MAX7440/MAX7441/MAX7442 6-Channel Integrated Video Reconstruction Filters General Description
... stream. The MAX7440/MAX7441/MAX7442 operate from a single +5V power supply. The inputs are DCcoupled from the DAC and the output can either be ACor DC-coupled. The DC-IN, DC-OUT architecture, leads to a perfect line-time distortion performance (zero tilt). The filters have a cutoff frequency optimiz ...
... stream. The MAX7440/MAX7441/MAX7442 operate from a single +5V power supply. The inputs are DCcoupled from the DAC and the output can either be ACor DC-coupled. The DC-IN, DC-OUT architecture, leads to a perfect line-time distortion performance (zero tilt). The filters have a cutoff frequency optimiz ...
Power Over Ethernet
... The IEEE 802.3af specification defines PSE as the element responsible for inserting power onto a Ethernet cable. The PD is the natural termination of this link, receiving the power, and could be a touchpanel, keypad, controller, interface, IP phone, a WLAN access point or any other IP device require ...
... The IEEE 802.3af specification defines PSE as the element responsible for inserting power onto a Ethernet cable. The PD is the natural termination of this link, receiving the power, and could be a touchpanel, keypad, controller, interface, IP phone, a WLAN access point or any other IP device require ...
S.C. Tang, D.M. Otten, T.A. Keim, and D.J. Perreault, “Design and Evaluation of a 42 V Automotive Alternator with Integrated Switched-Mode Rectifier,” IEEE Transactions on Energy Conversion , Vol. 25, No. 4, pp.983-992, Dec. 2010.
... diode bridge to rectify the generated ac voltages, and regulate the output voltage via field control. By exchanging the diodes in the bottom half of the rectifier bridge for active devices such as power MOSFETs, a semi-bridge switched-mode rectifier (SMR) is obtained (Fig. 1). The switched-mode rect ...
... diode bridge to rectify the generated ac voltages, and regulate the output voltage via field control. By exchanging the diodes in the bottom half of the rectifier bridge for active devices such as power MOSFETs, a semi-bridge switched-mode rectifier (SMR) is obtained (Fig. 1). The switched-mode rect ...
H045034248
... are discussed. The conventional line commutated inverters have square shaped waveform of line current which generates high harmonics and also produces excessive heat which causes damage to the winding of transformer. Alternatively, multilevel inverter reduces harmonics and gives output current wavef ...
... are discussed. The conventional line commutated inverters have square shaped waveform of line current which generates high harmonics and also produces excessive heat which causes damage to the winding of transformer. Alternatively, multilevel inverter reduces harmonics and gives output current wavef ...
ii. home automation using broadband
... When power lines are used to transmit high frequency communication signals, they can be regarded as transmission lines, which guide the transverse electromagnetic (TEM) waves along them. According to Electromagnetic theory, the two-wire transmission line must be a pair of parallel conducting wires s ...
... When power lines are used to transmit high frequency communication signals, they can be regarded as transmission lines, which guide the transverse electromagnetic (TEM) waves along them. According to Electromagnetic theory, the two-wire transmission line must be a pair of parallel conducting wires s ...
shah_cicc_06_slides
... Converts a single-ended 30-GHz clock signal to a differential signal with 750mVPP swing ...
... Converts a single-ended 30-GHz clock signal to a differential signal with 750mVPP swing ...
MAX1576 480mA White LED 1x/1.5x/2x Charge Pump for Backlighting and Camera Flash
... The MAX1576 charge pump drives up to 8 white LEDs with regulated constant current for uniform intensity. The main group of LEDs (LED1–LED4) can be driven up to 30mA per LED for backlighting. The flash group of LEDs (LED5–LED8) are independently controlled and can be driven up to 100mA per LED (or 40 ...
... The MAX1576 charge pump drives up to 8 white LEDs with regulated constant current for uniform intensity. The main group of LEDs (LED1–LED4) can be driven up to 30mA per LED for backlighting. The flash group of LEDs (LED5–LED8) are independently controlled and can be driven up to 100mA per LED (or 40 ...
MAX4376/MAX4377/MAX4378 Single/Dual/Quad, High-Side Current-Sense Amplifiers with Internal Gain General Description
... High-side current monitoring is especially useful in battery-powered systems since it does not interfere with the ground path of the battery charger. The input common-mode range of 0 to +28V is independent of the supply voltage and ensures that the current-sense feedback remains viable even when con ...
... High-side current monitoring is especially useful in battery-powered systems since it does not interfere with the ground path of the battery charger. The input common-mode range of 0 to +28V is independent of the supply voltage and ensures that the current-sense feedback remains viable even when con ...
R.P. Pilawa-Podgurski, W. Li, I. Celanovic and D.J. Perreault, “Integrated CMOS Energy Harvesting Converter with Digital Maximum Power Point Tracking for a Portable Thermophotovoltaic Power Generator,” IEEE Journal of Emerging and Selected Topics in Power Electronics , Vol. 3, No. 4, pp. 1021-1035, August 2015.
... the cells during low light conditions. This approach, while simple, is typically very inefficient. Ignoring the small voltage drop across the diode, the string voltage Vstring is restricted to be equal to the battery voltage Vout at all times, which is typically not the same as the MPP voltage (VMP ...
... the cells during low light conditions. This approach, while simple, is typically very inefficient. Ignoring the small voltage drop across the diode, the string voltage Vstring is restricted to be equal to the battery voltage Vout at all times, which is typically not the same as the MPP voltage (VMP ...
DOC
... 1. Build the low pass filter circuit shown in . (Remember that the signal generator is connected to ground internally.) 2. Set up CH 1 and CH 2 of the oscilloscope for AC coupling and a x10 probe. Turn off CH 3 and CH 4. Initially set the time base to 20 µsec/div. 3. With the function generator conn ...
... 1. Build the low pass filter circuit shown in . (Remember that the signal generator is connected to ground internally.) 2. Set up CH 1 and CH 2 of the oscilloscope for AC coupling and a x10 probe. Turn off CH 3 and CH 4. Initially set the time base to 20 µsec/div. 3. With the function generator conn ...
ac voltage measurement
... 1. Insert the black and red test leads into the COM and V Hz input terminals respectively. 2. Set rotary switch at desired range position. 3. Push SELECT button to select . 4. If the resistance being measured exceeds the maximum value of the range or the input is not connected, an overrange indi ...
... 1. Insert the black and red test leads into the COM and V Hz input terminals respectively. 2. Set rotary switch at desired range position. 3. Push SELECT button to select . 4. If the resistance being measured exceeds the maximum value of the range or the input is not connected, an overrange indi ...
ADM208 数据手册DataSheet 下载
... EIA-232-E and V.28 communications interfaces, especially in applications where ±12 V is not available. The ADM206, ADM211, and ADM213 feature a low power shutdown mode that reduces power dissipation to less than 5 μW, making them ideally suited for battery-powered equipment. The ADM213 has an active ...
... EIA-232-E and V.28 communications interfaces, especially in applications where ±12 V is not available. The ADM206, ADM211, and ADM213 feature a low power shutdown mode that reduces power dissipation to less than 5 μW, making them ideally suited for battery-powered equipment. The ADM213 has an active ...
Thermoelectric Cooler (TEC) Controller ADN8831 GENERAL DESCRIPTION
... differentially driven using an H-bridge configuration. The ADN8831 drives external transistors that are used to provide the current to the TEC. To further improve the power efficiency of the system, one side of the H-bridge uses a switched output. Only one inductor and one capacitor are required to ...
... differentially driven using an H-bridge configuration. The ADN8831 drives external transistors that are used to provide the current to the TEC. To further improve the power efficiency of the system, one side of the H-bridge uses a switched output. Only one inductor and one capacitor are required to ...
Totally Committed to Telecom Applications
... Not only can the MERCURIO be used with Mecc Alte’s traditional AC alternator design it also works with the Mecc Alte VISPA permanent magnet alternator. Although more expensive than traditional AC alternator the VISPA can represent a smaller package compared to the standard construction machines. The ...
... Not only can the MERCURIO be used with Mecc Alte’s traditional AC alternator design it also works with the Mecc Alte VISPA permanent magnet alternator. Although more expensive than traditional AC alternator the VISPA can represent a smaller package compared to the standard construction machines. The ...
BD9132MUV
... Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower input voltage, higher output voltage, heavier load, and/or ...
... Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower input voltage, higher output voltage, heavier load, and/or ...
Document
... of zener diode is that it can be used as voltage regulator. The regulating action takes place because of the fact that in reverse breakdown region, a very small change in voltage produces large change in current. This causes a sufficient increase in voltage drop across the resistance to lower voltag ...
... of zener diode is that it can be used as voltage regulator. The regulating action takes place because of the fact that in reverse breakdown region, a very small change in voltage produces large change in current. This causes a sufficient increase in voltage drop across the resistance to lower voltag ...
DAC8581 数据资料 dataSheet 下载
... The DAC8581 uses a proprietary, monotonic, high-speed resistor string architecture. The 16-bit input data are coded in twos complement, MSB-first format and transmitted using a 3-wire serial interface. The serial interface sends the input data to the DAC latch. The digital data are then decoded to s ...
... The DAC8581 uses a proprietary, monotonic, high-speed resistor string architecture. The 16-bit input data are coded in twos complement, MSB-first format and transmitted using a 3-wire serial interface. The serial interface sends the input data to the DAC latch. The digital data are then decoded to s ...
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.