Synchronous-Buck Power Stage (Rev. A)
... Current sense monitor output. Provides a current source output that is proportional to the current flowing in the low-side MOSFET. The gain on this pin is equal to 4.32 µA/A. The IMON pin should be connected to a 22.6-kΩ resistor to AGND to produce a voltage proportional to the power-stage load curr ...
... Current sense monitor output. Provides a current source output that is proportional to the current flowing in the low-side MOSFET. The gain on this pin is equal to 4.32 µA/A. The IMON pin should be connected to a 22.6-kΩ resistor to AGND to produce a voltage proportional to the power-stage load curr ...
Experiment EB2
... Multivibrators are circuits that are designed to have zero, one, or two stable output states. The 555 timer is one of the most popular general purpose IC multivibrators. It can be used in a variety of applications requiring accurate time delays, oscillation, and pulse conditioning. Signetics Corpora ...
... Multivibrators are circuits that are designed to have zero, one, or two stable output states. The 555 timer is one of the most popular general purpose IC multivibrators. It can be used in a variety of applications requiring accurate time delays, oscillation, and pulse conditioning. Signetics Corpora ...
17227 2 - SK Engineering Academy
... of a power system. The grading is not possible to be achieved in long and thin networks and also it can be noticed that grading of settings may lead to longer tripping times closer to the sources, which are not always desired. These problems have given way to the concept of ‘unit protection’ where t ...
... of a power system. The grading is not possible to be achieved in long and thin networks and also it can be noticed that grading of settings may lead to longer tripping times closer to the sources, which are not always desired. These problems have given way to the concept of ‘unit protection’ where t ...
LM2901EP Low Power Low Offset Voltage
... required to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling. Reducing this input resistors to < 10 kΩ reduces the feedback signal levels and finally, adding even a small amount (1 to 10 mV) of positive feedback (hysteresis) causes such a rapid transi ...
... required to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling. Reducing this input resistors to < 10 kΩ reduces the feedback signal levels and finally, adding even a small amount (1 to 10 mV) of positive feedback (hysteresis) causes such a rapid transi ...
A new market for residual current protection
... In this article by David Pitt, Product Manager Circuit-Breakers, Eaton MEM, he looks at the opportunities provided by application of RCBOs to 110V power supplies, such as on building sites and the like: A range of combined miniature circuit-breakers and residual current devices (RCBOs) for use with ...
... In this article by David Pitt, Product Manager Circuit-Breakers, Eaton MEM, he looks at the opportunities provided by application of RCBOs to 110V power supplies, such as on building sites and the like: A range of combined miniature circuit-breakers and residual current devices (RCBOs) for use with ...
A N - E V A L S F 3-...
... At light load condition, the SMPS enters into Active Burst Mode. The controller is always active at this state. VCC must therefore be above the switch off threshold VCCoff = 8.5V. While supporting low ripple on VOUT and fast response on load jump, efficiency also increased significantly during Activ ...
... At light load condition, the SMPS enters into Active Burst Mode. The controller is always active at this state. VCC must therefore be above the switch off threshold VCCoff = 8.5V. While supporting low ripple on VOUT and fast response on load jump, efficiency also increased significantly during Activ ...
Evaluates: MAX1960/MAX1961/MAX1962 MAX1960 Evaluation Kit General Description Features
... General Description The MAX1960 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX1960 family of PWM synchronous step-down controllers. There are two circuits on the board. The first has the MAX1960 installed but can also be used to evaluate th ...
... General Description The MAX1960 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX1960 family of PWM synchronous step-down controllers. There are two circuits on the board. The first has the MAX1960 installed but can also be used to evaluate th ...
4.5-V to 18-V Input Voltage, 2-A/3
... TPS65270 is a power management IC with two step-down buck converters. Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. TPS65270 can support 4.5-V to 18-V input supply, 2-A continuous current for Buck 1 and 3 A for Buck 2. The buck con ...
... TPS65270 is a power management IC with two step-down buck converters. Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. TPS65270 can support 4.5-V to 18-V input supply, 2-A continuous current for Buck 1 and 3 A for Buck 2. The buck con ...
PIC-Gen Frequency Generator - Everyday Practical Electronics
... but it has limitations in the maximum frequency that can be generated. The range is typically 0××001Hz to 100kHz. The MAX038, however, is stated to have an upper frequency limit of at least 20MHz, and possibly around 40MHz. It has to be said, though, that attaining such high frequencies requires pri ...
... but it has limitations in the maximum frequency that can be generated. The range is typically 0××001Hz to 100kHz. The MAX038, however, is stated to have an upper frequency limit of at least 20MHz, and possibly around 40MHz. It has to be said, though, that attaining such high frequencies requires pri ...
PDF/ENGLISH FLYER MANUELA
... biological materials, blood components and pharmaceuticals, covering a wide range of applications such as life sciences, pharmaceutical and industry. Kaltis ® freezers utilize the latest refrigeration technology and have been developed to increase reliability, stability, dependability and to reduce ...
... biological materials, blood components and pharmaceuticals, covering a wide range of applications such as life sciences, pharmaceutical and industry. Kaltis ® freezers utilize the latest refrigeration technology and have been developed to increase reliability, stability, dependability and to reduce ...
METRISO C Insulation and Resistance Measuring Instrument
... depleted to fully charged keeps the user continuously informed concerning battery charge level. The test instrument is switched off automatically if the batteries are depleted, and it includes a charge control circuit for safe charging of rechargeable NiMH or NiCd batteries. Test patterns can be que ...
... depleted to fully charged keeps the user continuously informed concerning battery charge level. The test instrument is switched off automatically if the batteries are depleted, and it includes a charge control circuit for safe charging of rechargeable NiMH or NiCd batteries. Test patterns can be que ...
Supplement
... Previous publications have attributed their linear term to dielectric losses. It is possible that these losses occur in the silicon nitride membrane, due to the composition of low-stress nitride which contains significant fractions of Si. If the dielectric is thin or has pinholes, it is also possibl ...
... Previous publications have attributed their linear term to dielectric losses. It is possible that these losses occur in the silicon nitride membrane, due to the composition of low-stress nitride which contains significant fractions of Si. If the dielectric is thin or has pinholes, it is also possibl ...
Exterior Spaces
... There are many efficient LEDs, but there are also many that are not efficient. The scale of efficiency varies considerably. A standard of 40 lumens per watt (lm/W) and a life-cycle of 35,000 hours is the suggested minimum. However, this only covers the light emitted from the LED component and not wh ...
... There are many efficient LEDs, but there are also many that are not efficient. The scale of efficiency varies considerably. A standard of 40 lumens per watt (lm/W) and a life-cycle of 35,000 hours is the suggested minimum. However, this only covers the light emitted from the LED component and not wh ...
MAX16907 36V, 2.2MHz Step-Down Converter with Low Operating Current General Description
... switching frequency is adjustable from 1MHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The output voltage is pin selectable to be 5V fixed or adjustable from 1V to 10V. The wide input voltage range along with its ability to operate at high duty cycle during under ...
... switching frequency is adjustable from 1MHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The output voltage is pin selectable to be 5V fixed or adjustable from 1V to 10V. The wide input voltage range along with its ability to operate at high duty cycle during under ...
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.