Service_manual_VGD
... signal by two paths. In battery mode, the UPS will go to failure mode if overload condition happened. The panel will indicate the fault condition. A. The UPS collects the continuous overload signals through CPU switches the bypass relay. If the output load is higher than 110% and lower than 125% of ...
... signal by two paths. In battery mode, the UPS will go to failure mode if overload condition happened. The panel will indicate the fault condition. A. The UPS collects the continuous overload signals through CPU switches the bypass relay. If the output load is higher than 110% and lower than 125% of ...
Pulsed operation of high-power LEDs for imaging flow
... LED (τrise,LED < 1 μs) is significantly shorter than for the examined flash lamp (τrise,FL ≈ 4 μs). In a similar manner, the decay time of the LED emission strictly follows the drive pulse while the flash lamp’s intensity decays in an exponential fashion over several tens of microseconds. Finally th ...
... LED (τrise,LED < 1 μs) is significantly shorter than for the examined flash lamp (τrise,FL ≈ 4 μs). In a similar manner, the decay time of the LED emission strictly follows the drive pulse while the flash lamp’s intensity decays in an exponential fashion over several tens of microseconds. Finally th ...
an electromagnetic energy scavenger from direct airflow
... airflows, and 2) a Helmholtz resonator based generator capable of scavenging energy from weaker airflows, i.e. environmental airflows. Both devices consist of two tightly coupled parts: a mechanical resonator, which produces high-frequency mechanical oscillation from quasi-constant airflow; and a pe ...
... airflows, and 2) a Helmholtz resonator based generator capable of scavenging energy from weaker airflows, i.e. environmental airflows. Both devices consist of two tightly coupled parts: a mechanical resonator, which produces high-frequency mechanical oscillation from quasi-constant airflow; and a pe ...
Optimal output filter design for microprocessor
... The number of capacitors N1 also rises rapidly if the supplypath stray inductance is too high. The additional highfrequency decoupling helps to decrease equivalent ESL and to reduce the number and cost of bulk capacitors. In accordance with this design example, aluminum electrolytic and OS-CON capac ...
... The number of capacitors N1 also rises rapidly if the supplypath stray inductance is too high. The additional highfrequency decoupling helps to decrease equivalent ESL and to reduce the number and cost of bulk capacitors. In accordance with this design example, aluminum electrolytic and OS-CON capac ...
IGC70T120T8RL IGBT4 Low Power Chip
... characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of ...
... characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of ...
1. Introduction - About the journal
... There can also be problems in low power IC technologies especially in high frequency applications and low level of the output signal (for example several tens of A in current mode) [21-25]. Recently published quadrature oscillators contain one [25-28, 31], two [19, 22, 29, 32, 34] or three [21, 33] ...
... There can also be problems in low power IC technologies especially in high frequency applications and low level of the output signal (for example several tens of A in current mode) [21-25]. Recently published quadrature oscillators contain one [25-28, 31], two [19, 22, 29, 32, 34] or three [21, 33] ...
SN75ALS161 数据资料 dataSheet 下载
... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
AD592 Low Cost, Precision IC Temperature Transducer
... Typical application areas include: appliance temperature sensing, automotive temperature measurement and control, HVAC (heating/ventilating/air conditioning) system monitoring, industrial temperature control, thermocouple cold junction compensation, board-level electronics temperature diagnostics, t ...
... Typical application areas include: appliance temperature sensing, automotive temperature measurement and control, HVAC (heating/ventilating/air conditioning) system monitoring, industrial temperature control, thermocouple cold junction compensation, board-level electronics temperature diagnostics, t ...
Week 13 Makeup Lab - Grading Guidelines
... other three 'up/down' components, while the missing 'left/right component would cancel out the other three 'left/right' components. ...
... other three 'up/down' components, while the missing 'left/right component would cancel out the other three 'left/right' components. ...
Experiment 2
... In DC circuits the power supplied to a resistive load is always equal to the product of the voltage and current. In AC circuits that is not necessarily the case, even when using RMS (or effective) values of voltage and current. Impedance elements in AC circuits are not limited to resistances, but in ...
... In DC circuits the power supplied to a resistive load is always equal to the product of the voltage and current. In AC circuits that is not necessarily the case, even when using RMS (or effective) values of voltage and current. Impedance elements in AC circuits are not limited to resistances, but in ...
AN-608 APPLICATION NOTE
... switched capacitor input stage, so similar comments with regards to maximum resistance and capacitance apply. The reference signal is usually low impedance so this is generally not a problem. Because these ADCs can accept a reference voltage of VDD, it means that bridge circuits can use VDD and GND ...
... switched capacitor input stage, so similar comments with regards to maximum resistance and capacitance apply. The reference signal is usually low impedance so this is generally not a problem. Because these ADCs can accept a reference voltage of VDD, it means that bridge circuits can use VDD and GND ...
Core Technology Group Application Note 5
... A broad range of systems include components with very low resistance/impedance values such as current meters, force measurement devices, temperature sensors, battery/fuel cells, etc. Such impedance values can be in the range of 0.001 ohm to 0.1 ohm (maybe even smaller). In many cases, it is necessar ...
... A broad range of systems include components with very low resistance/impedance values such as current meters, force measurement devices, temperature sensors, battery/fuel cells, etc. Such impedance values can be in the range of 0.001 ohm to 0.1 ohm (maybe even smaller). In many cases, it is necessar ...
A One-semester Course in Electric Circuit Analysis - ASEE
... The first actual analysis skills we introduce are for the single-loop and single-node-pair circuits. These are perhaps the most fundamental circuits of the course since many of the remaining analysis methods seek to reduce a circuit to one of these forms. Hence the student must be able to rapidly an ...
... The first actual analysis skills we introduce are for the single-loop and single-node-pair circuits. These are perhaps the most fundamental circuits of the course since many of the remaining analysis methods seek to reduce a circuit to one of these forms. Hence the student must be able to rapidly an ...
ADP5037 英文数据手册DataSheet 下载
... predefined threshold, the regulator operates in power save mode (PSM), improving the light-load efficiency. The two bucks operate out of phase to reduce the input capacitor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5037 LDOs extend the batter ...
... predefined threshold, the regulator operates in power save mode (PSM), improving the light-load efficiency. The two bucks operate out of phase to reduce the input capacitor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5037 LDOs extend the batter ...
TA7801 Owner`s Manual Doc.indd
... • Using RCA Connections: If the source unit has RCA outputs, simply attach a signal cable from the source unit to the amp’s RCA input. This will provide signal to the amp. • Using Speaker Level Connections: If the source unit does not have RCA outputs, a high level signal can be used instead by taki ...
... • Using RCA Connections: If the source unit has RCA outputs, simply attach a signal cable from the source unit to the amp’s RCA input. This will provide signal to the amp. • Using Speaker Level Connections: If the source unit does not have RCA outputs, a high level signal can be used instead by taki ...
Valhalla Scientific, Inc
... service, and repair of this product. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the product. Valhalla Scientific assumes no liability for the customer’s failure to comply with these ...
... service, and repair of this product. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the product. Valhalla Scientific assumes no liability for the customer’s failure to comply with these ...
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.