High Speed PWM Controller
... The ramp generator components, RT and CR are chosen so that the ramp at Pin 9 crosses the 1V threshold at the same time the desired maximum volt-second product is reached. The delay through the functional nor block must be such that the ramp capacitor can be completely discharged during the minimum ...
... The ramp generator components, RT and CR are chosen so that the ramp at Pin 9 crosses the 1V threshold at the same time the desired maximum volt-second product is reached. The delay through the functional nor block must be such that the ramp capacitor can be completely discharged during the minimum ...
E-308 - Accuphase
... vital performance parameters. The power amplifier output stage adopts a parallel pushpull configuration of multi-emitter power transistors designed for high-power audio applications. The large power transformer in the power supply and plenty of filtering capacity sustain ample highquality output pow ...
... vital performance parameters. The power amplifier output stage adopts a parallel pushpull configuration of multi-emitter power transistors designed for high-power audio applications. The large power transformer in the power supply and plenty of filtering capacity sustain ample highquality output pow ...
UNIT II
... • Losses are also important in receivers where low noise depends upon minimizing the losses before the first stage of amplification ...
... • Losses are also important in receivers where low noise depends upon minimizing the losses before the first stage of amplification ...
Electric Drives_MyCourses
... - The rectified DC voltage is converted e.g. with pulse width modulation (PWM) to AC voltage with the needed frequency - The AC voltage is fed to one of the three coils of the stator according to the sensors of the control system. ...
... - The rectified DC voltage is converted e.g. with pulse width modulation (PWM) to AC voltage with the needed frequency - The AC voltage is fed to one of the three coils of the stator according to the sensors of the control system. ...
Residential Split System Air Conditioners and Heat Pumps DEALER
... _____ If unit is installed in a sea coast or low--ambient application, see Installation Instructions Accessory Usage table. 5--stage models will operate in cooling mode to 55°F in non--communicating mode or 40°F in communicating mode. No low ambient cooling mode is available for 5--stage models. ___ ...
... _____ If unit is installed in a sea coast or low--ambient application, see Installation Instructions Accessory Usage table. 5--stage models will operate in cooling mode to 55°F in non--communicating mode or 40°F in communicating mode. No low ambient cooling mode is available for 5--stage models. ___ ...
EVS-03-04 Comments on Protective Barrier Option for Post
... determine safe energy limits. Based on that analysis, the agency determined that applying different permutations of voltage levels, body resistance, shock duration, and factor of safety can result in different safe energy levels, some of which are less than the 0.2 J energy level specified in SAE J1 ...
... determine safe energy limits. Based on that analysis, the agency determined that applying different permutations of voltage levels, body resistance, shock duration, and factor of safety can result in different safe energy levels, some of which are less than the 0.2 J energy level specified in SAE J1 ...
electricalsciencemcqs
... 55. A straight conductor of circular x-section carries a current. Which one of the following statements is true in this regard? (a) No force acts on the conductor at any point. (b) An axial force acts on the conductor tending to increase its length. (c) A radial force acts towards the axis tending t ...
... 55. A straight conductor of circular x-section carries a current. Which one of the following statements is true in this regard? (a) No force acts on the conductor at any point. (b) An axial force acts on the conductor tending to increase its length. (c) A radial force acts towards the axis tending t ...
Lab 7 Manual: Bipolar Junction Transistor Characteristics
... BJT pin configuration. BJTs are used to amplify current, using a small base current to control a large current between the collector and the emitter. This amplification is so important that one of the most noted parameters of transistors is the dc current gain, β (or h FE), which is the ratio of col ...
... BJT pin configuration. BJTs are used to amplify current, using a small base current to control a large current between the collector and the emitter. This amplification is so important that one of the most noted parameters of transistors is the dc current gain, β (or h FE), which is the ratio of col ...
II. Model for LED Optical Behaviour
... B. Circuit Simulation for the Optical Emitter The cut-off frequency for a LED, can be introduced in the above model using a FTABLE block, which describes in a table the frequency characteristic of the device, in order to use the information about the analog bandwidth in simulations. Figure 5. Model ...
... B. Circuit Simulation for the Optical Emitter The cut-off frequency for a LED, can be introduced in the above model using a FTABLE block, which describes in a table the frequency characteristic of the device, in order to use the information about the analog bandwidth in simulations. Figure 5. Model ...
1 - Electrical and Computer Engineering
... frequency, DC to DC resonant converter. The goal of the design is to produce an extremely efficient, small, light weight, and cost effective DC to DC converter. These are some of the properties that are made possible by using a ZVT resonant type converter. The converter built in this project has 4 m ...
... frequency, DC to DC resonant converter. The goal of the design is to produce an extremely efficient, small, light weight, and cost effective DC to DC converter. These are some of the properties that are made possible by using a ZVT resonant type converter. The converter built in this project has 4 m ...
A BCDC Solution For All Vehicles It is well known that the Redarc
... researched by Redarc and selected to suit a wide range of vehicles, and for this reason there is the need to have a range of BCDC to best suit all vehicle manufacturer charging system variations. The standard BCDC range will operate on voltage sensing alone in vehicles that the alternator voltages d ...
... researched by Redarc and selected to suit a wide range of vehicles, and for this reason there is the need to have a range of BCDC to best suit all vehicle manufacturer charging system variations. The standard BCDC range will operate on voltage sensing alone in vehicles that the alternator voltages d ...
Document
... power MOSFET, DirectFET®, or IGBT typically requires a large resistor which generates excess power losses (10-30W). By extracting the VDS(on) of a power MOSFET, or the VCE(on) of an IGBT, during the switch’s on-time, the IR25750L eliminates large external current sensing resistors, heatsinks and exc ...
... power MOSFET, DirectFET®, or IGBT typically requires a large resistor which generates excess power losses (10-30W). By extracting the VDS(on) of a power MOSFET, or the VCE(on) of an IGBT, during the switch’s on-time, the IR25750L eliminates large external current sensing resistors, heatsinks and exc ...
question bank
... 55. A straight conductor of circular x-section carries a current. Which one of the following statements is true in this regard? (a) No force acts on the conductor at any point. (b) An axial force acts on the conductor tending to increase its length. (c) A radial force acts towards the axis tending t ...
... 55. A straight conductor of circular x-section carries a current. Which one of the following statements is true in this regard? (a) No force acts on the conductor at any point. (b) An axial force acts on the conductor tending to increase its length. (c) A radial force acts towards the axis tending t ...
TPS76701-Q1 数据资料 dataSheet 下载
... NC − No internal connection Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76750) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven devic ...
... NC − No internal connection Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76750) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven devic ...
Annex to the Decision of the Council of the Eurasian Economic
... “nominal voltage of electric equipment - is input and (or) output voltage (voltage range) of electric equipment indicated by the manufacturer on the equipment and in operational documents”. 5. Paragraph 5 of Article 5 shall read as follows: “5. Operational documents shall be presented in Russian an ...
... “nominal voltage of electric equipment - is input and (or) output voltage (voltage range) of electric equipment indicated by the manufacturer on the equipment and in operational documents”. 5. Paragraph 5 of Article 5 shall read as follows: “5. Operational documents shall be presented in Russian an ...
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.