How to Build a Low-Cost, Extended-Range RFID Skimmer Ilan Kirschenbaum Avishai Wool Abstract
... Our assumption is that we are constructing an ad-hoc system for attack purposes, and mass production is not involved. Therefore modular design and perfect implementation are not the main design goals. Instead, we focused on quick, simple, and cheap methods. There are two design paradigms that can be ...
... Our assumption is that we are constructing an ad-hoc system for attack purposes, and mass production is not involved. Therefore modular design and perfect implementation are not the main design goals. Instead, we focused on quick, simple, and cheap methods. There are two design paradigms that can be ...
impedance stabilization network (isn) for unscreened balanced pairs
... auxiliary equipment (AE) or load which are necessary for the operation of the EUT. The ISN establishes the common-mode termination impedance for the EUT’s telecommunications port during measurement and emulates the unsymmetrical contribution (longitudinal conversion loss, LCL) of the connected line. ...
... auxiliary equipment (AE) or load which are necessary for the operation of the EUT. The ISN establishes the common-mode termination impedance for the EUT’s telecommunications port during measurement and emulates the unsymmetrical contribution (longitudinal conversion loss, LCL) of the connected line. ...
chapter 4 – evolution of electronics in modern society
... relationships between them in circuits. Firstly, the relationship between current, voltage, and resistance is called Ohm's Law, which was discovered by Georg Simon Ohm. Ohm's principal discovery was that the amount of electric current through a metal conductor in a circuit is directly proportional t ...
... relationships between them in circuits. Firstly, the relationship between current, voltage, and resistance is called Ohm's Law, which was discovered by Georg Simon Ohm. Ohm's principal discovery was that the amount of electric current through a metal conductor in a circuit is directly proportional t ...
WattStation™ Wall Mount
... Code 125 – Power relay(s) won’t close When the controller attempts to close the power relays, it monitors a relay feedback circuit. If the feedback circuit does not change state, this fault will be issued. The charging plug must be removed from the EV socket in order to clear this fault. If the faul ...
... Code 125 – Power relay(s) won’t close When the controller attempts to close the power relays, it monitors a relay feedback circuit. If the feedback circuit does not change state, this fault will be issued. The charging plug must be removed from the EV socket in order to clear this fault. If the faul ...
Manual
... selectable on the front panel, provide a choice of "that old way", or "the new way" of compression, for the highest level of flexibility in signal gain control. The "old way" or Feed-Back method is what most of the classic compressors used for the gain control circuit. The "new way" gain reduction i ...
... selectable on the front panel, provide a choice of "that old way", or "the new way" of compression, for the highest level of flexibility in signal gain control. The "old way" or Feed-Back method is what most of the classic compressors used for the gain control circuit. The "new way" gain reduction i ...
Cable Heating Effects due to Harmonic Distortion in
... in the neutral conductor of a three-phase four-wire circuit will be negligible. Most commercial and industrial establishments tend to employ balanced three-phase four-wire distribution systems with a reduced size neutral conductor. However, with the proliferation of non-linear loads in this type of ...
... in the neutral conductor of a three-phase four-wire circuit will be negligible. Most commercial and industrial establishments tend to employ balanced three-phase four-wire distribution systems with a reduced size neutral conductor. However, with the proliferation of non-linear loads in this type of ...
Pharaoh - Rogue Audio
... The Pharaoh headphone jack provides for a ¼” or 6mm headphone connector. If you have headphones with a different size connector, you can use a suitable adapter. The headphone button will put the Pharaoh in a partial standby mode with only the tubes and low voltage solid state circuits in operation. ...
... The Pharaoh headphone jack provides for a ¼” or 6mm headphone connector. If you have headphones with a different size connector, you can use a suitable adapter. The headphone button will put the Pharaoh in a partial standby mode with only the tubes and low voltage solid state circuits in operation. ...
The LRC Series Circuit Theory Sheet 2 The Three Types of
... Inductance, L, resistance, R, and capacitance, C, are the building blocks of basic electrical systems studied in first-year undergraduate engineering. A voltage (the input) applied to such a circuit containing these elements will result in a current flow (the output, or response) and a change in the ...
... Inductance, L, resistance, R, and capacitance, C, are the building blocks of basic electrical systems studied in first-year undergraduate engineering. A voltage (the input) applied to such a circuit containing these elements will result in a current flow (the output, or response) and a change in the ...
MAX9382/MAX9383 ECL/PECL Phase
... The MAX9382/MAX9383 are high-speed phase or frequency detectors. The MAX9382 is compatible with 100K logic and has a power-supply range of VCC - VEE = 4.2V to 5.5V. The MAX9383 is compatible with 10H logic with a power-supply range of VCC - VEE = 4.75V to 5.5V. Both devices are specified to function ...
... The MAX9382/MAX9383 are high-speed phase or frequency detectors. The MAX9382 is compatible with 100K logic and has a power-supply range of VCC - VEE = 4.2V to 5.5V. The MAX9383 is compatible with 10H logic with a power-supply range of VCC - VEE = 4.75V to 5.5V. Both devices are specified to function ...
TSC2008 数据资料 dataSheet 下载
... controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultra-low power, 12-bit, analog-to-digital (A/D) resistive ...
... controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultra-low power, 12-bit, analog-to-digital (A/D) resistive ...
High Voltage power supplies HV Switches - Euso
... one for the EC-boards with the MAPMT soldered and powered. Here, we are dealing only with the test related to the HV box. Integration inside the PDM will follow. Then the PDM could require a test at 3 mbar, however, each component apt to spark will have been previously tested. ...
... one for the EC-boards with the MAPMT soldered and powered. Here, we are dealing only with the test related to the HV box. Integration inside the PDM will follow. Then the PDM could require a test at 3 mbar, however, each component apt to spark will have been previously tested. ...
IL420, IL4208
... of greater than 10 kV/μs. This clamp circuit has a MOSFET that is enhanced when high dV/dt spikes occur between MT1 and MT2 of the TRIAC. When conducting, the FET clamps the base of the phototransistors, disabling the first stage SCR predriver. The 600 V, 800 V blocking voltage permits control of of ...
... of greater than 10 kV/μs. This clamp circuit has a MOSFET that is enhanced when high dV/dt spikes occur between MT1 and MT2 of the TRIAC. When conducting, the FET clamps the base of the phototransistors, disabling the first stage SCR predriver. The 600 V, 800 V blocking voltage permits control of of ...
Evaluates: MAX5138/MAX5139 MAX5138 Evaluation Kit General Description Features
... internal 2.440V reference. To use AVDD as the reference, place the shunt on jumper JU9 in the 2-3 position. For off-board external references, connect a user-supplied reference voltage to REFIN and remove the shunt on jumper JU9. Type in the reference voltage value in the Set Vref edit box and press ...
... internal 2.440V reference. To use AVDD as the reference, place the shunt on jumper JU9 in the 2-3 position. For off-board external references, connect a user-supplied reference voltage to REFIN and remove the shunt on jumper JU9. Type in the reference voltage value in the Set Vref edit box and press ...
Copper Development Association
... Effect of harmonics on transformers Transformers supplying harmonic loads must be appropriately de-rated Harmonic currents, being of higher frequency, cause increased magnetic losses in the core and increased eddy current and skin effect losses in the windings Triple-n harmonic currents circula ...
... Effect of harmonics on transformers Transformers supplying harmonic loads must be appropriately de-rated Harmonic currents, being of higher frequency, cause increased magnetic losses in the core and increased eddy current and skin effect losses in the windings Triple-n harmonic currents circula ...
Power Management
... Communication Subsystem Determining the most efficient active state operational mode is not a simple decision e.g., the power consumption of a transmitter may not necessarily be reduced by simply reducing the transmission rate or the transmission power the reason is that there is a tradeoff b ...
... Communication Subsystem Determining the most efficient active state operational mode is not a simple decision e.g., the power consumption of a transmitter may not necessarily be reduced by simply reducing the transmission rate or the transmission power the reason is that there is a tradeoff b ...
3355LectureSet04v24
... and the very large gain of the op amp. This is called the virtual short, or the summing-point constraint. The two input voltages are constrained to be equal by the presence of negative feedback. Without negative feedback, even a small input will saturate the output. ...
... and the very large gain of the op amp. This is called the virtual short, or the summing-point constraint. The two input voltages are constrained to be equal by the presence of negative feedback. Without negative feedback, even a small input will saturate the output. ...
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.