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GEIGER COUNTER
GEIGER COUNTER

... 2. Replace the batteries as soon as exhausted to prevent damage from leaking batteries. The batteries should be removed when the instrument is stored for long periods, 3. For a more detailed discussion of care and maintenance, see pp. 36-37 of "Prospecting for Uranium” 4. If the instrument fails to ...
Varistors MLA Datasheet
Varistors MLA Datasheet

... Energy dissipated within the MLA Series is calculated by multiplying the clamping voltage, transient current and transient duration. An important advantage of the multilayer is its interdigitated electrode construction within the mass of dielectric material. This results in excellent current distrib ...
Chapt36_VGo
Chapt36_VGo

... Present inside almost all home electronics ...
CircuitI_exp021411060340
CircuitI_exp021411060340

... current controlled current source (CCCS). Figure 11 shows the PSPICE diagrams of these dependent sources. Each diagram is divided into an ammeter at the left side and a source (voltage or current) at the right side. The ammeter must be connected in series with the required current that is to be meas ...
loss-free resistor-based power factor correction using a
loss-free resistor-based power factor correction using a

... Power factor correction (PFC) is one of the most active research lines in the field of power processing because electronic equipment must guarantee the compliance of standard regulations. For the last 20 years, many power dc–dc converters have been proposed for PFC applications. The solution is not ...
Multimeter and Resistance Lab 1 Materials Identifying Resistors and
Multimeter and Resistance Lab 1 Materials Identifying Resistors and

... When your meter is set to the current range it has no internal resistance. It is a short circuit. Remember it is important to always have some resistance in series with your meter. To protect the current ranges, your meter has a small fuse. If you touch your probes to a voltage source (such as the p ...
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 ...
AC Circuits - WordPress.com
AC Circuits - WordPress.com

MODELS OF EXCITATION SYSTEMS
MODELS OF EXCITATION SYSTEMS

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... advantages over similar designs using PNP pass transistors, including longer battery life. The P-channel MOSFET requires no base drive current, which reduces quiescent current considerably. PNPbased regulators waste considerable amounts of current in dropout when the pass transistor saturates. They ...
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Diode Applications Diode Switching As we have already seen the

Chapter 5 Electrical Motor Controls
Chapter 5 Electrical Motor Controls

... 12. What is the value of a preset of 743 with a time base of .1 sec? 74.3 sec 13. What is the value of a preset of 298 with a time base of .01 sec? 2.98 sec 14. What is the value of a preset of 1298 with a time base of .001 sec? 1.298 sec 15. What is the 12 hour clock equivalent of 21:00 hours on th ...
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Higher Unit 1

... Explain the operation of a simple transistor switching circuit. ...
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Worksheet - Electric Circuits

... 7) What is the current through a 400 W electric appliance when it is connected to a 120 V power line? 8) a. When an electric appliance is connected to a 120 V power line, there is a current through the appliance of 18.3 A. What is its resistance? b. What is the average amount of energy given to each ...
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(b) DAC0808

... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its specified operating conditions. Note 2: Range control is not required. Note 3: The maximum power dissipation must be der ...
View Electrical Safety Training
View Electrical Safety Training

... A ground-fault occurs when current flowing to the load (drill, saw, etc.) does not return by the prescribed route. In a simple 120 volt circuit, current travels through the black (ungrounded) wire to the load and returns to the source through the white (grounded) wire. If some or all of the current ...
EMG Biofeedback Device - University of Wisconsin–Madison
EMG Biofeedback Device - University of Wisconsin–Madison

... We designed an EMG biofeedback device that will turn on a vibrating massage pad. The device will provide a child with Lissencephaly a physical stimulus triggered by their EMG signal. Through operant conditioning, the child will learn that he can use this device to create a pleasurable sensation for ...
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TL720M05-Q1 Low-Dropout Voltage Regulator
TL720M05-Q1 Low-Dropout Voltage Regulator

... Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design impleme ...
Principles of Conversion - Operating Tech Electronics, Inc.
Principles of Conversion - Operating Tech Electronics, Inc.

... transformer can be greatly increased by using a secondary switching regulator. This is a more complex circuit than the linear regulator because it switches the series transistor off and on very fast (typically at 50 kHz - 50,000 times per second) such that the average voltage equals the required out ...
Kirchhoff`s Laws in DC Circuits
Kirchhoff`s Laws in DC Circuits

... Use the element labels given in the figure, and solve for the five (5) currents in terms of these labels, that is V1, V2, R1, R2, R3, R4, R5. All of this should be in your notebook when you arrive to make the measurements. • Determine the equation for the uncertainty in each of these prediction by p ...
LEP 4.1.10 Characteristic curves of electron tubes (diode
LEP 4.1.10 Characteristic curves of electron tubes (diode

... result of their Maxwellian velocity distribution, sufficient kinetic energy after they have left the cathode to surmount the anode field and reach the anode. The emitted electrons first form round the cathode an electron cloud from which slow-moving electrons rebound and can thus return to the catho ...
ENT 163 10-08 - UniMAP Portal
ENT 163 10-08 - UniMAP Portal

...  Transformer is an electrical device designed on the basis of the concept of magnetically coupling. It uses magnetically coupled coils to transfer energy from one circuit to another.  Function of transformer – stepping up or stepping down ac voltage or currents ...
BP5041A
BP5041A

... Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no respo ...
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Surge protector



A surge protector (or surge suppressor) is an appliance/device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.The terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as ""surge protectors"".
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