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Resistors
Resistors

... Circuits with spread parameters/elements Circuits with concentrated elements can be described by final (limited) number of devices (R, L, C) which are connected by ideal conductors. Changes in such circuits are so slow, that the speed of propagation of changes is not critical. Equations contains ju ...
OPA695 Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable FEATURES
OPA695 Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable FEATURES

... This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete devi ...
LP3985 - Texas Instruments
LP3985 - Texas Instruments

... output noise without slowing down the load transient response. Fast startup time is achieved by utilizing an internal power-on circuit that actively pre-charges the bypass capacitor. Power supply rejection is better than 50 dB at low frequencies and starts to roll off at 1 kHz. High power supply rej ...
e-scooter battery state of charge estimation using arduino mega
e-scooter battery state of charge estimation using arduino mega

Rev. A - Texas Instruments
Rev. A - Texas Instruments

... Logic high enables AutoTune operation; when logic low, the decay mode is set through the DECAYx pins; AutoTune must be pulled high prior to power-up or coming out of sleep, or else tied to V3P3 in order to enable AutoTune; internal pulldown; see AutoTune ...
ELTR 120 (Semiconductors 1)
ELTR 120 (Semiconductors 1)

Comparators
Comparators

... and latch (hold). When the latch-enable signal is in the compare state, the comparator output continuously responds to the sign of the net differential input signal. When the latch-enable signal transitions to the latch state, the comparator output goes to either a logic "1" or a logic "0", dependin ...
Reduced Voltage Starters Type S
Reduced Voltage Starters Type S

... Part winding starters can only be used with part winding motors which have two sets of identical windings, intended to be operated in parallel. During a part winding start, only one winding is energized, reducing the inrush current to 60-70% (depending on the motor design) and starting torque to 50% ...
SA571 AN - Experimentalists Anonymous
SA571 AN - Experimentalists Anonymous

... internal 20kΩ resistor (R3) is provided, but for accurate impedance termination an external resistor should be used. The output impedance is provided by the 4kΩ output resistor and the 4kΩ: 600Ω output transformer. ...
Old Company Name in Catalogs and Other Documents
Old Company Name in Catalogs and Other Documents

... • The information in this document is current as of March, 2002. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all product ...
Reducing energy costs
Reducing energy costs

... Lambda - The power factor represents the phase shift between current and voltage. This includes not only the fundamental components but also the harmonics. Parallel resonant frequency Frequency at which the modulus of impedance of a network is at its maximum. In the parallel resonant circuit, the pa ...
Three-Phase Power Quality Analyzer PowerPad™ Model 3945
Three-Phase Power Quality Analyzer PowerPad™ Model 3945

... Record – Set up and record trend data at selectable rates from one sample/second to one sample every 15 minutes on as many as 22 different variables for all phases. See the recorded data on screen, zoom in and out and scroll the time axis to analyze the data. Power & Energy – Display Watts, VARs and ...
LTC4121/LTC4121-4.2 - 40V 400mA
LTC4121/LTC4121-4.2 - 40V 400mA

... 400mA. The LTC4121-4.2 is suitable for charging Li-Ion/ Polymer batteries, while the programmable float voltage of the LTC4121 is suitable for several battery chemistries. The LTC4121 and LTC4121-4.2 include an accurate RUN pin threshold, low voltage battery preconditioning and bad battery fault det ...
EE 448
EE 448

... particularly when the motor is directly coupled to a large resonant-prone fan. The capacitor run motor is very useful in this type of application because the motor can be designed to have low vibration under full-load. The capacitor serves to shift the phase on one of the windings so that the curren ...
4-bit dual supply level translator without direction control pin
4-bit dual supply level translator without direction control pin

... transition at the output side. When it drives a high state, after the one-shot transistor is turned off, only the pull-up resistor is able to maintain the state. In this case, the resistive load is not recommended. ...
Synthesis Techniques for Low-Power Hard Real-Time Systems on Variable Voltage Processors
Synthesis Techniques for Low-Power Hard Real-Time Systems on Variable Voltage Processors

... renders the technique ineffective. The problem outlined above really arises because conventional systems are designed with a fixed supply voltage. However, there is no fundamental reason that the supply voltage has to be fixed. Instead, it can in principle be varied dynamically at run time. Indeed, ...
LT3090 – 36V, 600mA Negative Linear
LT3090 – 36V, 600mA Negative Linear

relays
relays

Synthesis of Input-Rectifierless AC/DC Converters
Synthesis of Input-Rectifierless AC/DC Converters

Design of a Restartable Clock Generator for Use in GALS SoCs
Design of a Restartable Clock Generator for Use in GALS SoCs

... the clock and then restarting it when data is valid. In the majority of similar schemes presented in the literature, the pausible clock is implemented using a delay-based circuit or ring oscillator. Pausible clocks are often discussed in the relevant literature; for example, in [Tra:91], [Dob:99], [ ...
High voltage testing
High voltage testing

... The test conditions of a type test therefore cannot be used in a routine test. It is not the goal of a routine test to check if the equipment design is suited for the expected electrical stress on the insulation. Routine tests are carried out only to verify that clearances and solid insulation have ...
The Physics of Implantable Devices
The Physics of Implantable Devices

... • If you reduce the voltage by half, the current is also cut in half • If you reduce the impedance by half, the current ...
LTC3261 - High Voltage, Low Quiescent Current Inverting Charge
LTC3261 - High Voltage, Low Quiescent Current Inverting Charge

... pump and oscillator circuit are enabled using the EN pin. At the beginning of a clock cycle, switches S1 and S2 are closed. The external flying capacitor across the C+ and C– pins is charged to the VIN supply. In the second phase of the clock cycle, switches S1 and S2 are opened, while switches S3 a ...
MC1488, SN55188, SN75188 (Rev. C)
MC1488, SN55188, SN75188 (Rev. C)

... Supply voltage, VCC + at (or below) 25°C free-air temperature (see Notes 1 and 2) . . . . . . . . . . . . . . . . . 15 V Supply voltage, VCC − at (or below) 25°C free-air temperature (see Notes 1 and 2) . . . . . . . . . . . . . . . . −15 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . ...
replacing selenium rectifiers
replacing selenium rectifiers

... Tube rectifiers need filament power to thermally stimulate electron flow. The 5Y3, for example, requires 5 volts at 2 amperes to heat its filament. That means that 10 watts must be furnished and dissipated as heat in order to rectify enough DC to supply a 10 or 20 watt amplifier. With selenium recti ...
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Current source



A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.
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