lab sheet - Faculty of Engineering
... in voltage across the anode and the cathode as verified by Ohm's law where V = IR. When R is small, so is the voltage drop across it. The forward current flowing through the SCR is limited primarily by the impedance of the external circuit, and the SCR will remain on as long as this current does not ...
... in voltage across the anode and the cathode as verified by Ohm's law where V = IR. When R is small, so is the voltage drop across it. The forward current flowing through the SCR is limited primarily by the impedance of the external circuit, and the SCR will remain on as long as this current does not ...
RFHA1101 RF OUT VD RF IN
... RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. RFMD Green: RoHS compliant per EU Directive 2002/95/EC, halogen free per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and ...
... RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. RFMD Green: RoHS compliant per EU Directive 2002/95/EC, halogen free per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and ...
LM5015 High Voltage Monolithic Two-Switch Forward DC
... the VIN and PVIN pins for applications with localized de-coupling capacitors. For applications where a lower voltage auxiliary source is available, the configuration shown in Figure 2b can be used. Powering the VIN pin with a relatively low voltage auxiliary source reduces the IC power dissipation a ...
... the VIN and PVIN pins for applications with localized de-coupling capacitors. For applications where a lower voltage auxiliary source is available, the configuration shown in Figure 2b can be used. Powering the VIN pin with a relatively low voltage auxiliary source reduces the IC power dissipation a ...
BUF11705 22-V Supply, 10+1 Channel Gamma Correction Buffer FEATURES
... towards gamma correction in high-resolution LCD panels. It is pin-compatible with the existing BUF11702 and BUF11704 and operates at higher supply voltages up to 22 V (24 V absolute max). The higher supply voltage enables faster response times and brighter images in large-screen LCD panels. This is ...
... towards gamma correction in high-resolution LCD panels. It is pin-compatible with the existing BUF11702 and BUF11704 and operates at higher supply voltages up to 22 V (24 V absolute max). The higher supply voltage enables faster response times and brighter images in large-screen LCD panels. This is ...
Version 001 – CIRCUITS – holland – (1290) 1 This
... across the capacitor at this time. Because it is not possible to change the charge on the capacitor like a step function (or the current should be infinitely large), immediately after the switch is closed, the voltage across the capacitor (and R2 ) is still zero. Therefore, the voltage across R1 is ...
... across the capacitor at this time. Because it is not possible to change the charge on the capacitor like a step function (or the current should be infinitely large), immediately after the switch is closed, the voltage across the capacitor (and R2 ) is still zero. Therefore, the voltage across R1 is ...
04 Design Examples
... As the switching frequency increases, the size of the magnetic components decreases and the switching losses increase. If the switching frequency is in the audio range, it is possible for the coil windings to vibrate, thus creating an annoying singing tone. This is a common phenomenon in TV sets, wh ...
... As the switching frequency increases, the size of the magnetic components decreases and the switching losses increase. If the switching frequency is in the audio range, it is possible for the coil windings to vibrate, thus creating an annoying singing tone. This is a common phenomenon in TV sets, wh ...
Fuse Facts and Fuse Selection Guide
... typically derated 25% for operation at 25°C to avoid nuisance blowing. For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25°C ambient. For additional details, see RERATING in the previous section and AMBIENT TEMPERATURE below. ...
... typically derated 25% for operation at 25°C to avoid nuisance blowing. For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25°C ambient. For additional details, see RERATING in the previous section and AMBIENT TEMPERATURE below. ...
PC360.2 / PC650.2 PC400.4 / PC640.4 / PC1000.1 / PC740.5
... channels 1&2 to be identical to 3&4 or if you need low pass or band pass signal. Understand that this bypasses EVERYTHING so that the front channels are identical to the rear channels. Phase Switch – This switch changes the phase of the woofer from 0 to 180 degrees. Subsonic – The Subsonic Filter pr ...
... channels 1&2 to be identical to 3&4 or if you need low pass or band pass signal. Understand that this bypasses EVERYTHING so that the front channels are identical to the rear channels. Phase Switch – This switch changes the phase of the woofer from 0 to 180 degrees. Subsonic – The Subsonic Filter pr ...
1. Introduction
... of its simple and rugged construction and minimal need of maintenance. Its efficiency is good and the weight low. It has internationally standardised dimensions and power ratings. Its popularity and good characteristics have also made it cost-effective. Before frequency converters were introduced in ...
... of its simple and rugged construction and minimal need of maintenance. Its efficiency is good and the weight low. It has internationally standardised dimensions and power ratings. Its popularity and good characteristics have also made it cost-effective. Before frequency converters were introduced in ...
(with R 2 and R 3 )?
... A tree is decorated with a string of many equal lights placed in parallel. If one burns out (no current flow through it), what happens to the others? a) They all stop shining b) the others get a bit dimmer c) the others get a bit brighter d) the brightness of the others remains the same Be ...
... A tree is decorated with a string of many equal lights placed in parallel. If one burns out (no current flow through it), what happens to the others? a) They all stop shining b) the others get a bit dimmer c) the others get a bit brighter d) the brightness of the others remains the same Be ...
EMC filters 2-line filters SIFI-F for normal insertion loss
... As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specifi ...
... As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specifi ...
RF3931D RF OUT VD RF IN
... The physical structure of the GaN HEMT results in three terminal capacitors similar to other FET technologies. These capacitances exist across all three terminals of the device. The physical manufactured characteristics of the device determine the value of the CDS (drain to source), CGS (gate to sou ...
... The physical structure of the GaN HEMT results in three terminal capacitors similar to other FET technologies. These capacitances exist across all three terminals of the device. The physical manufactured characteristics of the device determine the value of the CDS (drain to source), CGS (gate to sou ...
shielding and grounding in large detectors
... control concepts. Figure 1 illustrates some of the basics of shielding and ground loop control. No leads of any kind should enter a Faraday cage without their shield being connected to the detector enclosure at the penetration, otherwise a lead connected to the enclosure would inject noise (it prese ...
... control concepts. Figure 1 illustrates some of the basics of shielding and ground loop control. No leads of any kind should enter a Faraday cage without their shield being connected to the detector enclosure at the penetration, otherwise a lead connected to the enclosure would inject noise (it prese ...
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.