MAX742 Switch-Mode Regulator with +5V to ±12V or ±15V Dual Output _______________General Description
... The MAX742 oscillator frequency is generated without external components and can be set at 100kHz or 200kHz by pin strapping. Operating the device at 100kHz results in lower supply current and improved efficiency, particularly with light loads. However, component stresses increase and noise becomes ...
... The MAX742 oscillator frequency is generated without external components and can be set at 100kHz or 200kHz by pin strapping. Operating the device at 100kHz results in lower supply current and improved efficiency, particularly with light loads. However, component stresses increase and noise becomes ...
Krell Audio Components MRA
... with no drop in current or voltage. Only the Master Reference Amplifier has this feature, which continually monitors and adjusts the power source to compensate for even the smallest variation in current or voltage. A new Krell technology contributes to the Master Reference Amplifier's superiority an ...
... with no drop in current or voltage. Only the Master Reference Amplifier has this feature, which continually monitors and adjusts the power source to compensate for even the smallest variation in current or voltage. A new Krell technology contributes to the Master Reference Amplifier's superiority an ...
UCC3884 数据资料 dataSheet 下载
... Theory of Operation The UCC3884 current-mode PWM controller contains a programmable oscillator which includes the ability to synchronize multiple PWMs. The positive and negative sloped portions of the oscillator waveform (measured at CT), have time intervals that are set by external resistors at ION ...
... Theory of Operation The UCC3884 current-mode PWM controller contains a programmable oscillator which includes the ability to synchronize multiple PWMs. The positive and negative sloped portions of the oscillator waveform (measured at CT), have time intervals that are set by external resistors at ION ...
Name - Seattle Central College
... how your excellent data proves you correct. Please word-process all text integrating your circuit diagrams throughout. Your diagrams should not appear at the end of your report but rather be included in the report where you present the data and your discussion. The due date for the report will be Th ...
... how your excellent data proves you correct. Please word-process all text integrating your circuit diagrams throughout. Your diagrams should not appear at the end of your report but rather be included in the report where you present the data and your discussion. The due date for the report will be Th ...
Chapter17
... Lower frequencies for the applied voltage result in less current and more XC. With a steady dc voltage source (zero frequency), the capacitor’s opposition is infinite and there is no current. In this case the capacitor is effectively an open circuit. ...
... Lower frequencies for the applied voltage result in less current and more XC. With a steady dc voltage source (zero frequency), the capacitor’s opposition is infinite and there is no current. In this case the capacitor is effectively an open circuit. ...
Lecture4_oim - Nuclear Physics Group
... room temperature is proportional to the temperature difference between the beverage and the room. ...
... room temperature is proportional to the temperature difference between the beverage and the room. ...
PLL synthesizing oscillator (3)
... This IC is composed from the phase comparator which detects the difference between the reference frequency and the comparison frequency and the VCO which generates the digital pulse. There are two kinds of phase comparators. As for the 1st, it outputs the phase difference of the input signal (the re ...
... This IC is composed from the phase comparator which detects the difference between the reference frequency and the comparison frequency and the VCO which generates the digital pulse. There are two kinds of phase comparators. As for the 1st, it outputs the phase difference of the input signal (the re ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V MR16 - 2 Light
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
Spectral Characterisation of Photovoltaic Devices Technical Note
... discriminate between the photocurrent wavelength (and therefore energy) generated by the solar simulator from excites an electron from the valence that generated by the monochromatic band to the conduction band, leaving probe, the latter is modulated with the behind a hole. An in-built voltage acros ...
... discriminate between the photocurrent wavelength (and therefore energy) generated by the solar simulator from excites an electron from the valence that generated by the monochromatic band to the conduction band, leaving probe, the latter is modulated with the behind a hole. An in-built voltage acros ...
EET101 - Rogue Community College
... Define series circuit 6.1B Determine total resistance in a series circuit 6.1C Determine resistor voltage drop in a series circuit 6.1D Calculate total power dissipated in a series circuit 6.1E Solve for voltage, current, resistance, and power in a series circuit 6.1F List characteristics of series ...
... Define series circuit 6.1B Determine total resistance in a series circuit 6.1C Determine resistor voltage drop in a series circuit 6.1D Calculate total power dissipated in a series circuit 6.1E Solve for voltage, current, resistance, and power in a series circuit 6.1F List characteristics of series ...
www.BDTIC.com/ON/ Test Procedure for the NCP1562 Evaluation Board
... 2. Connect MM1 ground terminal to demo board (Vin+) terminal. 3. Connect Power Supply (-) terminal to demo board (Vin-) terminal. 4. Configure Multimeter 2 (MM2) for measuring voltage. Connect MM2 voltage measurement terminal to demo board (Vout+) terminal. Connect MM2 ground terminal to demo board ...
... 2. Connect MM1 ground terminal to demo board (Vin+) terminal. 3. Connect Power Supply (-) terminal to demo board (Vin-) terminal. 4. Configure Multimeter 2 (MM2) for measuring voltage. Connect MM2 voltage measurement terminal to demo board (Vout+) terminal. Connect MM2 ground terminal to demo board ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V MR16 - 5 Light
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V MR16 - 4 Light
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V MR16 - 3 Light
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
... 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
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.