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Chapter 11: Electrical Engineering
Chapter 11: Electrical Engineering

Multimeter
Multimeter

... circumstances, and switch to OFF after measurement. c. Connection of test leads: connect the red and black test leads to the (+) and (-) terminals, respectively. 3. Use the multimeter to measure the resistance value. (Note: Perform the zero calibration procedure before every resistance measurement.) ...
M750 Display Unit
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... The M750 display unit is a highly accurate and stable digital process indicator that accepts all commonly used process signals. The unit can be used 'stand alone' or, with the Modbus serial communications, as part of a larger system. Option Pods may be plugged into the M750 base unit, without the ne ...
On the Application of Superposition to Dependent Sources in Circuit
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Lab 1: The Digital Multimeter
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... Task 7: Measuring Current and Verifying Ohm’s Law. 1. Configure the multimeter to measure voltage by pressing the “DC V” softkey. Configure the meter on the dc power supply to display the voltage on the +6V output by pressing the “+6V” softkey. Adjust the voltage of the power supply using the “+6V” ...
MAX1870A Step-Up/Step-Down Li+ Battery Charger General Description
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... The MAX1870A step-up/step-down multichemistry battery charger charges with battery voltages above and below the adapter voltage. This highly integrated charger requires a minimum number of external components. The MAX1870A uses a proprietary step-up/stepdown control scheme that provides efficient ch ...
AN11119 Medium power small-signal MOSFETs in DC-to-DC conversion
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... 2.2 Voltage conversion with a charge pump In some applications, a simple voltage inversion or a doubling of voltage is required. Sometimes only a low current is needed. An example of such application is generation of negative voltage for operational amplifier or comparator or boosted voltage for hig ...
IOSR Journal of Electronics and Communication Engineering (IOSRJECE)
IOSR Journal of Electronics and Communication Engineering (IOSRJECE)

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... The LTM8033 is a standalone nonisolated step-down switching DC/DC power supply that can deliver up to 3A of output current. It is an EMC product; its radiated emissions are so quiet that it can pass the stringent requirements of EN55022 class B as a stand alone product. This μModule provides a preci ...
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... The MAX1209 is a 3.3V, 12-bit, 80Msps analog-to-digital converter (ADC) featuring a fully differential wideband track-and-hold (T/H) input amplifier, driving a low-noise internal quantizer. The analog input stage accepts single-ended or differential signals. The MAX1209 is optimized for low power, s ...
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... predictions calculated using the resistively shunted junction (RSJ) model for a single junction. The x-axis for the calculated results was adjusted to the measured data by fitting the first zero of the critical current to the measured data. As seen in figure 3(a), if an 8 GHz signal was applied, goo ...
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... The quick evolution of the involved technologies and the major changes under way in the telecommunication industry warrant a short study period to review the state of the art, after which the laboratory trials and demonstrator implementations can start. It is also understood and incorporated into th ...
LT8310 - 100Vin Forward Converter Controller
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... hysteresis via this pin’s 5.7µA hysteretic current and the values of the external resistors. The device is shut down below the UVLO threshold and draws 1µA or less from VIN when VUVLO ≤ 0.36V (min). The UVLO pin can withstand 100V maximum. OVLO (Pin 3): System Overvoltage Lockout Input. Program the ...
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... A lot of RF schematics mention: “bias circuit not shown”; when actually one of the most critical yet often overlooked aspects in any RF circuit design is the bias network. The bias network determines the amplifier performance over temperature as well as RF drive. The DC bias condition of the RF tran ...
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... the stored charge Q remains constant. As a result, the voltage V across it will change. An increase of capacitance leads to a voltage drop, and a decrease of capacitance leads to a voltage rise. The capacitance of a parallel plate capacitor in air with plates of one-sided area A that are separated b ...
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... A hardware watchdog timer is built into each module to perform a reset if the microcontroller fails to return from an operation in a timely manner or "locks up". ...
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... 1. Outputs loaded with 50Ω to VCC – 2V. Airflow ≥ 300lfpm. 2. fMAX is defined as the maximum toggle frequency measured. Measured with a 750mV input signal, all loading with 50Ω to VCC –2V. 3. Differential propagation delay is defined as the delay from the crossing point of the differential input sig ...
A Buck-Boost Type Charger with a Switched Capacitor Circuit
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... A. Switched Capacitor Circuit In a conventional power factor corrector, the utility voltage is converted to an absolute voltage by a diode rectifier, and then a boost converter is used to control the waveform of the input current and to regulate the output DC voltage. For nominal operation, the outp ...
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Schmitt trigger



In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.
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