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QS5U21
QS5U21

1B22 数据手册DataSheet 下载
1B22 数据手册DataSheet 下载

... cycle (Figure 5). The SYNC input typically has an input impedance of 150 kΩ储180 pF. ...
EE223: Lab 3 - First Order Circuits
EE223: Lab 3 - First Order Circuits

emt212_ch.2 op-amp application and frequency
emt212_ch.2 op-amp application and frequency

... The weight of a input is set by the ratio of Rf to the resistance, Rx, for that input (Rx = R1, R2, R3,…Rn. For example: - if weight of Vin = 1, then Rx = Rf - if weight of Vin = 0.5, required Rx = 2Rf ...
Why control techniques depend on heater element materials
Why control techniques depend on heater element materials

... controlled SCR unit with true power (load voltage X load current) feedback. With this arrangement the temperature controller puts a control signal representing demanded power into the SCR unit. The SCR then delivers power in proportion, regardless of variations in line voltage and load resistance. E ...
MAX8863T/S/R, MAX8864T/S/R Low-Dropout, 120mA Linear Regulators __________________General Description
MAX8863T/S/R, MAX8864T/S/R Low-Dropout, 120mA Linear Regulators __________________General Description

... The MAX8863/MAX8864 are low-dropout, low-quiescentcurrent linear regulators designed primarily for batterypowered applications. They supply an adjustable 1.25V to 6.5V output or a preselected 2.80V (MAX886_R), 2.84V (MAX886_S), or 3.15V (MAX886_T) output for load currents up to 120mA. As illustrated ...
Testing Power Sources for Stability
Testing Power Sources for Stability

Dual impedance digital multimeters— What`s the point?
Dual impedance digital multimeters— What`s the point?

... today for testing industrial, electrical, and electronic systems have high impedance input circuits greater than 1 megohm. In simple terms this means that when the DMM is placed across a circuit for a measurement, it will have little impact on circuit performance. This is the desired effect for ...
Driver LCI 10 W 350 – 900 mA TOP C
Driver LCI 10 W 350 – 900 mA TOP C

... Isolation and electric strength testing of luminaires Electronic devices can be damaged by high voltage. This has to be considered during the routine testing of the luminaires in production. According to IEC 60598-1 Annex Q (informative only!) or ENEC 303-Annex A, each luminaire should be submitted ...
Solution Tutorial 1
Solution Tutorial 1

... Insulator – very wide energy gap. Valence electrons do not jump into the conduction band except under breakdown conditions, i.e extremely high voltage, thus makes insulator doesn’t conduct electrical current under normal operation. Semiconductor – a much narrow energy gap compare to insulator. This ...
Bipolar Transistors 20V 5A VCE(sat)500mV max. NPN Single PCP
Bipolar Transistors 20V 5A VCE(sat)500mV max. NPN Single PCP

... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
Load or device Battery or energy source
Load or device Battery or energy source

Document
Document

... However this does not allow for propagation time or settling time of the signal which can typically add up to 40ns to the transition time. Therefore the realistic period for the signal is 120ns + 40ns = 160ns or 6.25MHz expressed as a data rate. So a data sheet that specifies 25MHz with a slew rate ...
DIN-A-MITE B Spec Sheet - Watlow.com.sg | heaters
DIN-A-MITE B Spec Sheet - Watlow.com.sg | heaters

... +10/-25% @ 25mA max. per controlled leg • DC contactor: 4.5 to 32VDC: max. c ­ urrent @ 4.5VDC is 6mA per leg. Add 2mA per LED used to the total current • Linear current: 4 to 20mA DC: loop-powered, control option F0 only (requires current source with 6.2VDC available, no more than three DIN-A-MITE ...
Lab #2 Voltage and Current Division
Lab #2 Voltage and Current Division

... 5% across a load resistor of 10k. Figure 2.10 demonstrates the problem. The resistors available for use are listed in Figure 2.10. As with most engineering design problems, there are constraints. In this case, your design must cost less than 20 cents. Each resistor costs 6 cents. Assume your time i ...
Photoresistor, Transistor, and LED`s
Photoresistor, Transistor, and LED`s

Introduction_to_Voltage_Pulsers__1_
Introduction_to_Voltage_Pulsers__1_

FSL106MR Green Mode Fairchild Power Switch (FPS™) Features
FSL106MR Green Mode Fairchild Power Switch (FPS™) Features

... exceeds the internal reference voltage of 2.5V, the optocoupler LED current increases, the feedback voltage VFB is pulled down, and the duty cycle is reduced. This typically occurs when the input voltage is increased or the output load is decreased. ...
How Series and Parallel Circuits Differ
How Series and Parallel Circuits Differ

...  If you have a circuit with one load (fig 1 A), the total resistance of the ...
Relay coupler
Relay coupler

Tunnel Diode small ( )
Tunnel Diode small ( )

... - the input signal power is then amplified at constant current by the large base collector reverse bias voltage to a larger output power - a limitation of the npn transistor amplifier is its low input impedance (or low input resistance), also its power consumption and integration density are not the ...
Chapter 17 & 18
Chapter 17 & 18

... Breakers are switches that automatically open with the current is too high. If there is not a connection, current cannot flow. Therefore it prevents electrical fires as well. 30. How are loads connected in a series circuit? In a single loop or straight line. ...
Lesson Plan
Lesson Plan

... flows through the circuit, what is the ohmic value of the resistor? 7. A generator is supplying 120 volts to a circuit which comprises two resistances, 6 ohms and 4 ohms, in series. What is the current flowing in the circuit? 8. What voltage must a generator have to produce a current of 6 amperes th ...
Final Presentation
Final Presentation

Student Exploration: Circuits
Student Exploration: Circuits

... 2. Turn on Show current and select Electron flow. The moving dots represent a current of electrons—tiny, negatively charged particles—moving through the wire. Voltage is a measure of how much more potential energy an electron at one end of a battery has than an electron at the other end of the batte ...
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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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