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Lab 4. Magnetic field and currents: an ammeter
Lab 4. Magnetic field and currents: an ammeter

... determine the magnetic flux density that the needle is in. This is the value of the earth's magnetic flux density at the place where the needle is located. What approximations do you have to make when answering this question? Part ...
Magnetize
Magnetize

... • You can easily test that like charges repel and unlike charges attract each other by doing a very simple experiment. • Take a glass rod and rub it with a piece of silk, then hang it from its middle with a piece string so that it is free to move. • If you then bring another glass rod which you have ...
40 V to 400 V Uni-directional Current/Voltage/Power Monitoring
40 V to 400 V Uni-directional Current/Voltage/Power Monitoring

... measurement. The voltage across R1 sets the drain current of the FET and by matching the resistor R2 in the drain of the FET to be equal to R1, VSENSE voltage is developed across R2 (VR2). Inputs of the current monitor INA226 are connected across R2 for current sensing. Hence the current monitor doe ...
Quad-Channel Isolator with Integrated DC-to-DC Converter ADuM5400
Quad-Channel Isolator with Integrated DC-to-DC Converter ADuM5400

... converter provides up to 500 mW of regulated, isolated power with 5.0 V input and 5.0 V output voltages. This architecture eliminates the need for a separate, isolated dc-to-dc converter in low power, isolated designs. The iCoupler chip scale transformer technology is used to isolate the logic signa ...
MAX1830/MAX1831 3A, 1MHz, Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches
MAX1830/MAX1831 3A, 1MHz, Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches

... The MAX1830/MAX1831 constant-off-time, pulse-widthmodulated (PWM) step-down DC-DC converters are ideal for use in 5V and 3.3V to low-voltage conversion necessary in notebook and subnotebook computers. These devices feature internal synchronous rectification for high efficiency and reduced component ...
(a) Results based on the measurements on the circuit in Figure 3(a)
(a) Results based on the measurements on the circuit in Figure 3(a)

... analysis. To verify Thevenin’s Theorem, consider a load resistor RL (or load impedance ZL) that is connected to a “black box” as shown in Figure 1. The black box can contain any combination of the circuit elements. Thevenin’s Theorem states that insofar as the load resistor RL (or load impedance ZL) ...
ECT1012 Circuit Theory and Field Theory
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ECT1012 Circuit Theory and Field Theory
ECT1012 Circuit Theory and Field Theory

... analysis. To verify Thevenin’s Theorem, consider a load resistor RL (or load impedance ZL) that is connected to a “black box” as shown in Figure 1. The black box can contain any combination of the circuit elements. Thevenin’s Theorem states that insofar as the load resistor RL (or load impedance ZL) ...
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... Note 1: LX has internal clamp diodes to GND and IN. Applications that forward bias these diodes should take care not to exceed the IC’s power dissipation limit of the device. Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlay ...
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... of its load being determined by devices of this type. Operation of these devices represents a doubleedged sword. Although they provide greater efficiency, they can also cause serious consequences to power distribution systems — in the form of harmonic distortion. Electronic equipment (switching powe ...
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... Boost converter 1 uses a fixed-frequency current-mode topology. Its output voltage (VPOS) is programmed at the factory to 4.6 V and cannot be changed by the user. For highest output voltage accuracy, connect the output sense pin (FBS) directly to the positive terminal of the main output capacitor. I ...
enter title here (14 pt type size, uppercased, bold and centered over
enter title here (14 pt type size, uppercased, bold and centered over

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SN75ALS162 数据资料 dataSheet 下载
SN75ALS162 数据资料 dataSheet 下载

... The driver outputs (GPIB I/O ports) feature active bus-terminating resistor circuits designed to provide a high impedance to the bus when VCC = 0. The drivers are designed to handle loads up to 48 mA of sink current. Each receiver features pnp transistor inputs for high input impedance and hysteresi ...
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Self-oscillation in electrochemical transistors: An RLC modeling approach Linköping University Post Print
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... is low enough, the amplitude can be suppressed to be neglectable. This is consistent with what we have observed in experiments that the current oscillation only occurred in some devices with particular geometry, which may correspond to the exact parameters in the model to generate oscillating curren ...
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BRHEALTH0511
BRHEALTH0511

... The STHV748 is a quad, high-voltage fully-monolithic pulser IC mainly intended for medical ultrasound imaging applications. An ultrasound imaging system transmits ultrasound waveforms generated from a piezoelectric transducer. As soon as the transmission ends, the same transducer is then switched to ...
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BDTIC BAL99...

... For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expect ...
High-frequency two-input CMOS OTA for continuous
High-frequency two-input CMOS OTA for continuous

... = (Vib+ - Kb_) are the differential input voltages. It was assumed that the transistors Mla-M4a and M l b M 4 b have the same dimensions W and L. This circuit can be considered as two identical transconductance stages with output nodes connected in parallel and exlubits a perfectly linear transcondu ...
SN75ALS161 数据资料 dataSheet 下载
SN75ALS161 数据资料 dataSheet 下载

... Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
ICS552-02 L S 2 I
ICS552-02 L S 2 I

... GND on pin 10, as close to the device as possible. A 33 Ω series terminating resistor should be used on each clock output if the trace is longer than 1 inch. To achieve the low output skews that the ICS552-02 is capable of, careful attention must be paid to board layout. Essentially, all 8 outputs m ...
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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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