Tutorial 7 - DC Circuits
... where Rx , Rs , and %s are all precisely known. The working battery is assumed to be fresh and to give a constant voltage. (b) A slide-wire potentiometer is balanced against a 1.0182-V standard cell when the slide wire is set at 33.6 cm out of a total length of 100.0 cm. For an unknown source, the s ...
... where Rx , Rs , and %s are all precisely known. The working battery is assumed to be fresh and to give a constant voltage. (b) A slide-wire potentiometer is balanced against a 1.0182-V standard cell when the slide wire is set at 33.6 cm out of a total length of 100.0 cm. For an unknown source, the s ...
EE 321 Analog Electronics, Fall 2013 Homework #9 solution
... 0.2 V and provide a differential output signal of 4 V. To ensure adequate linearity, it is required to limit the signal amplitude across each base-emitter junction to a maximum of 5 mV. Another design requirement is that the differential input resistance be at least 80 kΩ. The BJTs available are spe ...
... 0.2 V and provide a differential output signal of 4 V. To ensure adequate linearity, it is required to limit the signal amplitude across each base-emitter junction to a maximum of 5 mV. Another design requirement is that the differential input resistance be at least 80 kΩ. The BJTs available are spe ...
Rule Application:Difference Amplifier
... can be used to convert a binary number to a voltage in a digital-to-analog converter. 3. A summing amplifier can be used to apply a DC offset voltage along with an AC signal voltage. This is done in a LED modulation circuit to keep the LED in its linear operating range. Rule Application:Difference A ...
... can be used to convert a binary number to a voltage in a digital-to-analog converter. 3. A summing amplifier can be used to apply a DC offset voltage along with an AC signal voltage. This is done in a LED modulation circuit to keep the LED in its linear operating range. Rule Application:Difference A ...
Resistor prac (Croc Clips)
... conductors of electricity (eg. copper, aluminium and gold) are not strong resistors. The coiled wires in electric radiators and kettles have much more resistance. Energy has to be used to force electrons through the wire. This conversion of electrical energy into heat energy causes the temperature o ...
... conductors of electricity (eg. copper, aluminium and gold) are not strong resistors. The coiled wires in electric radiators and kettles have much more resistance. Energy has to be used to force electrons through the wire. This conversion of electrical energy into heat energy causes the temperature o ...
common emitter transistor amplifier
... Note that the amplifier is inverting (hence the minus sign), an increase in base voltage causes a decrease in collector voltage and vice-a-versa. Note also that the gain is independent of the hFE of the transistor. This is an advantage of this type of amplifier. Design of an Amplifier. At this point ...
... Note that the amplifier is inverting (hence the minus sign), an increase in base voltage causes a decrease in collector voltage and vice-a-versa. Note also that the gain is independent of the hFE of the transistor. This is an advantage of this type of amplifier. Design of an Amplifier. At this point ...
Chaos in a diode
... • Forward bias—positive emf terminal to p-type, negative to n-type Holes and electrons are pushed toward non-conducting center and oppose built-in potential barrier; current tunnels through the barrier • Reverse bias: negative emf terminal to p-type, positive to n-type Reinforces built-in potential ...
... • Forward bias—positive emf terminal to p-type, negative to n-type Holes and electrons are pushed toward non-conducting center and oppose built-in potential barrier; current tunnels through the barrier • Reverse bias: negative emf terminal to p-type, positive to n-type Reinforces built-in potential ...
Skill Sheet 7-B Voltage, Current, and Resistance
... into a lower tank. The water in the higher tank has greater potential energy than the water in the lower tank. A similar thing happens with the flow of charges in an electric circuit. Charges flow in a circuit when there is a difference in energy level from one end of the battery (or any other energ ...
... into a lower tank. The water in the higher tank has greater potential energy than the water in the lower tank. A similar thing happens with the flow of charges in an electric circuit. Charges flow in a circuit when there is a difference in energy level from one end of the battery (or any other energ ...
• - Lattice - University of Florida
... 4. Connect the positive and negative terminals to the electroded surfaces of the ceramic. 5. Make sure the high voltage on the power supply is turned OFF. 6. Additonally connect the fixture to the ground terminal from the device. 7. Set the voltage limit and current limits (to just above that requir ...
... 4. Connect the positive and negative terminals to the electroded surfaces of the ceramic. 5. Make sure the high voltage on the power supply is turned OFF. 6. Additonally connect the fixture to the ground terminal from the device. 7. Set the voltage limit and current limits (to just above that requir ...
NCEA Level 3 Physics (91526) 2013 Assessment Schedule
... When switch 1 is opened. the current in the circuit will drop to zero and while it is changing a voltage is induced in the inductor. Because there is no longer a battery in the circuit, the induced voltage is no longer limited by the voltage of the battery so the rate of change of current, and hence ...
... When switch 1 is opened. the current in the circuit will drop to zero and while it is changing a voltage is induced in the inductor. Because there is no longer a battery in the circuit, the induced voltage is no longer limited by the voltage of the battery so the rate of change of current, and hence ...
Ohm`s Law relates the voltage, current and resistance of a circuit. It
... Consider a water tank at a certain height above the ground. At the bottom of this tank there is a hose. The pressure at the end of the hose can represent voltage. The water in the tank represents charge. The more water in the tank, the higher the charge, the more pressure is measured at the end of t ...
... Consider a water tank at a certain height above the ground. At the bottom of this tank there is a hose. The pressure at the end of the hose can represent voltage. The water in the tank represents charge. The more water in the tank, the higher the charge, the more pressure is measured at the end of t ...
Chapter 6: Analog Electrical Devices
... high-impedance charge, q, into an output voltage, Eo. The circuit consists of a high gain, inverting voltage operational amplifier. These circuits are commonly used with transducers that utilize piezoelectric crystals. ...
... high-impedance charge, q, into an output voltage, Eo. The circuit consists of a high gain, inverting voltage operational amplifier. These circuits are commonly used with transducers that utilize piezoelectric crystals. ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.