The Iconoscope TV Camera at W6BM, Berkeley
... The mechanical television era, dating from the early 1920's, used mechanical scanning technologies (discs, lenses and mirrors) to rasterize the subject with resolution from 30 lines, 12.5 frames per second, ultimately to 240 lines, 50 progressive frames per second by the middle '30's. The scanning c ...
... The mechanical television era, dating from the early 1920's, used mechanical scanning technologies (discs, lenses and mirrors) to rasterize the subject with resolution from 30 lines, 12.5 frames per second, ultimately to 240 lines, 50 progressive frames per second by the middle '30's. The scanning c ...
MAX8570–MAX8575 High-Efficiency LCD Boost with True Shutdown General Description
... The MAX8570 family of LCD step-up converters uses an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output. A unique control scheme provides the highest efficiency over a wide range ...
... The MAX8570 family of LCD step-up converters uses an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output. A unique control scheme provides the highest efficiency over a wide range ...
BDTIC ICL8001G www.BDTIC.com/infineon Single-Stage Flyback And
... been designed to support. To avoid such a situation, the internal foldback point correction circuit varies the VCS voltage limit according to the bus voltage. This means the VCS will be decreased when the bus voltage increases. To keep a constant maximum input power of the converter, the ...
... been designed to support. To avoid such a situation, the internal foldback point correction circuit varies the VCS voltage limit according to the bus voltage. This means the VCS will be decreased when the bus voltage increases. To keep a constant maximum input power of the converter, the ...
Signal Conditioning Unit (SCU) Description: The SCU provides
... The SCU provides power to the LED and converts the raw signal from the LED to a programmable pulse output. The SCU has several external controls and indicators. A green POWER indicator is lit whenever power is available to the SCU. A red EVENT indicator lights whenever a trigger is received from the ...
... The SCU provides power to the LED and converts the raw signal from the LED to a programmable pulse output. The SCU has several external controls and indicators. A green POWER indicator is lit whenever power is available to the SCU. A red EVENT indicator lights whenever a trigger is received from the ...
Inverter Power Stage Connected with PV-Grid
... using bidirectional devices [8]. Hierarchical control for DC and AC microgrids proposed [9]. A reconfiguration strategy proposed for PV systems to achieve maximum power generation from non-uniformly aged PV module [10]. Grid with PV inverters, owing to the growth of world’s power demand, the necessi ...
... using bidirectional devices [8]. Hierarchical control for DC and AC microgrids proposed [9]. A reconfiguration strategy proposed for PV systems to achieve maximum power generation from non-uniformly aged PV module [10]. Grid with PV inverters, owing to the growth of world’s power demand, the necessi ...
A Temperature Compensation Technique for CMOS Current Controlled Current Conveyor (CCCII)
... versatile analog device which is used to implement many analog signal processing functions such as active filters, impedance simulators, and oscillators, etc. This currentmode device offers several advantages, such as greater linearity and wider bandwidth over voltage-mode active device likes op-amp ...
... versatile analog device which is used to implement many analog signal processing functions such as active filters, impedance simulators, and oscillators, etc. This currentmode device offers several advantages, such as greater linearity and wider bandwidth over voltage-mode active device likes op-amp ...
View PDF - Maxwell Science
... Power System Stabilizer (PSS) was introduced in generator to give that fine adjustment to damp out power oscillations that are referred to as electromechanical or Low Frequency Oscillations (LFO) (Gutierrez et al., 2000). Fast load voltage regulation is required to compensate for time varying loads ...
... Power System Stabilizer (PSS) was introduced in generator to give that fine adjustment to damp out power oscillations that are referred to as electromechanical or Low Frequency Oscillations (LFO) (Gutierrez et al., 2000). Fast load voltage regulation is required to compensate for time varying loads ...
WCS-351571
... and diagnostic information about this issue can not be transmitted and/or generated by the sensor assembly, but must be detected by the vehicle powertrain control system(s). To mitigate this potential failure mode, WMCO designed and released sensors feature a “Dual Redundant Output” concept. This se ...
... and diagnostic information about this issue can not be transmitted and/or generated by the sensor assembly, but must be detected by the vehicle powertrain control system(s). To mitigate this potential failure mode, WMCO designed and released sensors feature a “Dual Redundant Output” concept. This se ...
a 21 st century nullmeter
... What The Nullmeter Is What The Nullmeter Is Not Where A Nullmeter Is Used Nullmeter Vs. Digital Instruments In Classic Use Practical Issues With Nullmeter Measurements When To Use A Null Meter—And When Not To The Future Of Nullmeters ...
... What The Nullmeter Is What The Nullmeter Is Not Where A Nullmeter Is Used Nullmeter Vs. Digital Instruments In Classic Use Practical Issues With Nullmeter Measurements When To Use A Null Meter—And When Not To The Future Of Nullmeters ...
Z-source Inverter Fed Induction Motor Drives – a Space Vector... Based Approach
... equal inductors and two equal capacitors. The network inductors are connected in series arms and capacitors are connected in diagonal arms. The impedance network is used to buck or boost the input voltage depend boosting factor. This network also act as a second order filter and it should required l ...
... equal inductors and two equal capacitors. The network inductors are connected in series arms and capacitors are connected in diagonal arms. The impedance network is used to buck or boost the input voltage depend boosting factor. This network also act as a second order filter and it should required l ...
运算放大器系列AD8031 数据手册DataSheet 下载
... Output swing to within 20 mV of either rail Low distortion −62 dB @ 1 MHz, VO = 2 V p-p −86 dB @ 100 kHz, VO = 4.6 V p-p Output current: 15 mA High grade option: VOS (maximum) = 1.5 mV ...
... Output swing to within 20 mV of either rail Low distortion −62 dB @ 1 MHz, VO = 2 V p-p −86 dB @ 100 kHz, VO = 4.6 V p-p Output current: 15 mA High grade option: VOS (maximum) = 1.5 mV ...
Surface Mount RF Schottky Barrier Diodes Technical Data HSMS-282x Series
... generally reserved for detector applications (where very high values of RV swamp out high RS) and n-type diodes such as the HSMS-282x are used for mixer applications (where high L.O. drive levels keep RV low). DC biased detectors and self-biased detectors used in gain or power control circuits. ...
... generally reserved for detector applications (where very high values of RV swamp out high RS) and n-type diodes such as the HSMS-282x are used for mixer applications (where high L.O. drive levels keep RV low). DC biased detectors and self-biased detectors used in gain or power control circuits. ...
LM140K Series 3-Terminal Positive Regulators
... Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on ...
... Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on ...
1. The figure below shows a circuit containing a battery of e.m.f. 12 V
... The value of the resistor in Fig. 2 is 200 Ω. The thermistor is at 65 °C. Use data from Fig. 1 to show that the current in the circuit is about 0.02 A. ...
... The value of the resistor in Fig. 2 is 200 Ω. The thermistor is at 65 °C. Use data from Fig. 1 to show that the current in the circuit is about 0.02 A. ...
SA604A High performance low power FM IF system Philips Semiconductors
... The high gain and bandwidth of the SA604A in combination with its very low currents permit circuit implementation with superior performance. However, stability must be maintained and, to do that, every possible feedback mechanism must be addressed. These mechanisms are: 1) Supply lines and ground, 2 ...
... The high gain and bandwidth of the SA604A in combination with its very low currents permit circuit implementation with superior performance. However, stability must be maintained and, to do that, every possible feedback mechanism must be addressed. These mechanisms are: 1) Supply lines and ground, 2 ...
MC12015 MC12016 MC12017 Dual Modulus Prescaler
... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any ...
... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any ...
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.