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AD VM M
AD VM M

BJT-definitions and models
BJT-definitions and models

... 3 – When 1 and 2 are obeyed Ic is proportional to Ib (Ic = beta . Ib) Both Ib and Ic follow to the emitter. Note: the collector current is not due to forward conduction of the base-collector diode; that diode is reverse-biased. Just think of it as “transistor action.” Property 3 gives the transistor ...
LWT/LWTN - M
LWT/LWTN - M

... D) Output: With current output, be sure that load resistance is within the permissible limit including wiring resistance. With voltage output, check that the minimum load is met. E) Frequency Output: Check that the load is less than 35V DC/100mA. ...
Make an ioniser.
Make an ioniser.

... lamp lit. The speed at which the lamp flashes is thus directly proportional to the current flow. The power consumption of an ioniser like this is so low that it can be virtually considered as being zero. Remember that capacitors store charge and in this case it is at a high voltage. The circuit will ...
Sensors – Poles and Zeros
Sensors – Poles and Zeros

... seismic frequency band. It is extremely useful as a reference for assessing the quality of seismic stations, for predicting the detectability of small signals, and for the design of seismic sensors. Stationary seismic noise is normally measured in terms of acceleration power density. This density mu ...
Turn-on behavior of power LTT and light driver modules
Turn-on behavior of power LTT and light driver modules

... Light absorption in silicon was investigated earlier [1,2], as well as LTT turn-on delay time depending on wave length. It was shown that optimum wave lengths for LTT turn-on are 9501050 nm. Laser diodes and drivers were developed for this wave length range. Laser diodes were made on the base of sem ...
Remote Emergency Notification System (RENS)
Remote Emergency Notification System (RENS)

2SD2671
2SD2671

... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
BCR405U
BCR405U

... towards resistor biasing are: • homogenous light output despite varying forward voltages in different LED strings • homogenous light output of LED’s despite voltage drop across long supply lines • homogenous light output independent from supply voltage variations • longer lifetime of the LED’s due t ...
Product Manual
Product Manual

Negative resistance
Negative resistance

... resonator, creating sustained oscillations. • These circuits are frequently used for oscillators at microwave frequencies. • Oscillators have also been built using the negative resistance region of amplifying devices like vacuum tubes, as in the dynatron oscillator. ...
TGS 2610 - for the detection of LP Gas - Figaro USA
TGS 2610 - for the detection of LP Gas - Figaro USA

Student 2
Student 2

... increases across the parallel branches. The energy carried by the electrons is the same. Current, unlike voltage raised between circuits. The current drawn by a resistor depends on its resistance (Ohms Law states that resistance is inversely proportional to current) Low resistance has high current a ...
NCL 2000 Screen Grid Protection.
NCL 2000 Screen Grid Protection.

2SB1706
2SB1706

... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
Transformer Specification Sheet
Transformer Specification Sheet

... For wye connection divide X by sqrt3 ...
DM7402 Quad 2-Input NOR Gates DM7402 Quad 2-I nput NOR
DM7402 Quad 2-Input NOR Gates DM7402 Quad 2-I nput NOR

... SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ...
Electronics 101
Electronics 101

... • There is no general rule here, but always think about those factors: • If you use PWM, forget about relays • Some MOSFET require a Gate voltage higher than logic power supplies • Old power BJT transistors have really low gain (can be as low as 10). In that case, the base current is non negligible. ...
Why Electrical Engineering I?
Why Electrical Engineering I?

... whatever the circuit requires to produce the fixed current – it does not usually have zero volts across it Is is fixed, AC or DC ...
Mar 2008 - Tiny, Fast and Efficient Comparator Regenerates Clock Signals up to 3MHz
Mar 2008 - Tiny, Fast and Efficient Comparator Regenerates Clock Signals up to 3MHz

... The LTC6702’s push-pull output stage and its ability to operate with either input above the positive supply rail simplifies logic level translation. Many comparators use an open collector or open drain type output stage to enable ...
4-20 mA SENSOR / TRANSMITTER MODEL TR-1000
4-20 mA SENSOR / TRANSMITTER MODEL TR-1000

Electric Current and Electric Circuits
Electric Current and Electric Circuits

... The greater the voltage, the greater the current The lower the voltage, the lower the current The lower the resistance, the greater the current The greater the resistance, the lower the current ...
Whirlwind Q-BOX V2 - Rautschka onStage KG
Whirlwind Q-BOX V2 - Rautschka onStage KG

... a handy mic or line-level tone for activating a signal path or identifying a specific cable in a pile of cable ends. Powered by a single standard 9V alkaline battery and housed in rugged ABS, the Qbox is light yet able to withstand the wear and tear of fieldwork. The SOURCE section of the Qbox lets ...
• 100 - 240 Vac nominal input range • Overvoltage and short circuit
• 100 - 240 Vac nominal input range • Overvoltage and short circuit

... Low Power Medical Power Supplies 60 Watt AC/DC Universal Input Power Supply ...
Position, Force, Motion Transducers
Position, Force, Motion Transducers

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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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