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3 - MACscience
3 - MACscience

... The amount they store is half of the energy supplied by the battery. (The other half is dissipated as heat in the resistance of the circuit) When a capacitor discharges, the energy is dissipated in the resistance of the circuit as heat, light etc. ...
Combine two 8-bit outputs to make one 16
Combine two 8-bit outputs to make one 16

... temperature-compensation sufficient for (2V), CODE is the digital code to the case, to 50V. Simultaneously, the CL pin the application. DAC in decimal format, and IOUT is the goes high to indicate the open-fault conEquations from the MAX1932 data desired output current. For this circuit, dition.왏 ...
Download PGR-6101 Datasheet
Download PGR-6101 Datasheet

... resistance when the motor is de-energized and by monitoring ground-fault current when the motor is energized. The PGR-6101 features two separate analog outputs for optional current and ohm meters, and two separate alarm relays. It operates on one- or three-phase solidly grounded, resistance grounded ...
Parallel and Series Circuits
Parallel and Series Circuits

... b. Are all the connections good or is one loose? c. Is the potentiometer turned all the way to one side or another (if connected)? If so this may be adding too much resistance to the circuit so try turning it the other way. d. Is there enough light? Solar panels are very picky about the amount of li ...
Electric charges - Churchill High School
Electric charges - Churchill High School

... called ___________. This unit is abbreviated with the Greek letter _______________ ...
Find the charging time in case battery capacity is
Find the charging time in case battery capacity is

Parallel measurement
Parallel measurement

power-one,inc. (map55-4001) acdc
power-one,inc. (map55-4001) acdc

... Meets EN55022, Conducted Class B Limits ...


CMP04 数据手册DataSheet 下载
CMP04 数据手册DataSheet 下载

... REV. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or oth ...
MAX8862, MAX8862L, MAX8862R, MAX8862T 双路高、低功率线性稳压器,封装在单一芯片,节省空间
MAX8862, MAX8862L, MAX8862R, MAX8862T 双路高、低功率线性稳压器,封装在单一芯片,节省空间

... mode (SET1/SET2 = GND), output voltages are factory preset to 4.95V (L), 3.175V (T), or 2.85V (R). In adjustable/external feedback mode, output voltage is adjusted between 2V and 11V with two external resistors connected as a voltage divider to SET1/SET2 (Figure 2). Since the input bias current at S ...
R09 Set No. 2
R09 Set No. 2

... 3. (a) Describe a thermocouple with suitable sketches. (b) Explain how it can be used to measure high temperature. ...
Experiment 1
Experiment 1

... electrons caused by the material (resistance) AND other the properties of the component involved (reactance). Resistors have no reactance. So the impedance of a resistor is equal to its resistance only. Reactance varies with the frequency of the input. Resistance remains the same at all frequencies. ...
Electricity and Magnetism
Electricity and Magnetism

Chapter 20 Notes - Valdosta State University
Chapter 20 Notes - Valdosta State University

... Any device in a circuit will have some resistance to the flow of electric current. Even devices that supply voltage to the circuit have resistance. In this case, it is called internal resistance. In many cases this resistance is too small to affect the output voltage of the device. However, the lar ...
Extech Instruments Test Equipment
Extech Instruments Test Equipment

... Simultaneous 20,000/10,000 count display of the primary parameter (L, C or R) with the secondary parameter of Q (quality), D (dissipation) or R (resistance) • Set Hi/Lo limits using absolute values or percentage limits • Selectable Parallel or Series equivalent circuit • 4-1/2 digit backlit LCD disp ...
DC to DC CONVERSION (CHOPPER)
DC to DC CONVERSION (CHOPPER)

Electronic Instrumentation
Electronic Instrumentation

... electrons caused by the material (resistance) AND other the properties of the component involved (reactance). Resistors have no reactance. So the impedance of a resistor is equal to its resistance only. Reactance varies with the frequency of the input. Resistance remains the same at all frequencies. ...
Slide 1
Slide 1

... About the application • The term open-collector typically refers to a transistor output where the collector (output) of the transistor is not connected to a positive voltage. Since a transistor used in outputs is a saturated switch, the collector needs to be connected to a positive voltage to compl ...
Class 6 Slides
Class 6 Slides

... Since this “node” is at GND (OV) this node must be 1.5Volts higher ...
DOC - Rachel
DOC - Rachel

... Types of operational amplifiers Applications of op-amps Simple calculations involving inverting, noninverting, summing amplifiers and voltage ...
Lab #2
Lab #2

Series and Parallel Circuits: Comparing Various Parameters J0901
Series and Parallel Circuits: Comparing Various Parameters J0901

L27
L27

17 Notes
17 Notes

< 1 ... 729 730 731 732 733 734 735 736 737 ... 984 >

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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