General technical information
... A7-Capacitors assembling and testing B-Technical Terms (reference standards: EN, IEC, CECC and DIN normatives) and general technical data B1-Rated Capacitance (Cr) B2-Capacitance Tolerance B3-Temperature Coefficient (α) B4-Long term stability B5-Rated Voltage (Ur) B6-Category Voltage (Uc) B7-Temperat ...
... A7-Capacitors assembling and testing B-Technical Terms (reference standards: EN, IEC, CECC and DIN normatives) and general technical data B1-Rated Capacitance (Cr) B2-Capacitance Tolerance B3-Temperature Coefficient (α) B4-Long term stability B5-Rated Voltage (Ur) B6-Category Voltage (Uc) B7-Temperat ...
Chapter 4- Resistance
... The resistor value is the primary concern. The value of the resistor may be indicated by three to five digits. In all cases, the last digit indicates the number of zeros to be added to the preceding digits. In the example given, the last digit (2) indicates the number of zeros to be added to the fir ...
... The resistor value is the primary concern. The value of the resistor may be indicated by three to five digits. In all cases, the last digit indicates the number of zeros to be added to the preceding digits. In the example given, the last digit (2) indicates the number of zeros to be added to the fir ...
TOP242-250 - Power Integrations
... EXTERNAL CURRENT LIMIT (available in Y, R or F package) or one terminal MULTI-FUNCTION (available in P or G package) have been added to implement some of the new functions. These terminals can be connected to the SOURCE pin to operate the TOPSwitch-GX in a TOPSwitch-like three terminal mode. However ...
... EXTERNAL CURRENT LIMIT (available in Y, R or F package) or one terminal MULTI-FUNCTION (available in P or G package) have been added to implement some of the new functions. These terminals can be connected to the SOURCE pin to operate the TOPSwitch-GX in a TOPSwitch-like three terminal mode. However ...
OTA Based Floating Inductance Simulator Lalit Soni NTPC
... The performance of filters designed by the use of passive components degrades at audio frequencies and the required resistances and inductances values calculated from the mathematical expression are very difficult to meet from the market. Filters are indispensable parts of any communication systems. ...
... The performance of filters designed by the use of passive components degrades at audio frequencies and the required resistances and inductances values calculated from the mathematical expression are very difficult to meet from the market. Filters are indispensable parts of any communication systems. ...
K20 Sub-Family
... to VDD. If VIN greater than VDIO_MIN (=VSS-0.3V) is observed, then there is no need to provide current limiting resistors at the pads. If this limit cannot be observed then a current limiting resistor is required. The negative DC injection current limiting resistor is calculated as R=(VDIO_MIN-VIN)/ ...
... to VDD. If VIN greater than VDIO_MIN (=VSS-0.3V) is observed, then there is no need to provide current limiting resistors at the pads. If this limit cannot be observed then a current limiting resistor is required. The negative DC injection current limiting resistor is calculated as R=(VDIO_MIN-VIN)/ ...
2008 26 Spring Wiring Matters
... earthed point of the power supply system, i.e. the supply transformer. The characteristics of the protective device and the circuit impedances are required to fulfil the following requirement (Regulation 411.4.5): Zs x Ia ≤ Uo where: Zs is the impedance in ohms (Ω) the fault loop comprising: the s ...
... earthed point of the power supply system, i.e. the supply transformer. The characteristics of the protective device and the circuit impedances are required to fulfil the following requirement (Regulation 411.4.5): Zs x Ia ≤ Uo where: Zs is the impedance in ohms (Ω) the fault loop comprising: the s ...
DET Series EARTH GROUND ELECTRODE TESTERS USER GUIDE
... recommended that they wear appropriate rubber gloves, rubber soled shoes, and stand on a rubber mat. ...
... recommended that they wear appropriate rubber gloves, rubber soled shoes, and stand on a rubber mat. ...
AD7823 数据手册DataSheet 下载
... the fundamental. Noise is the rms sum of all nonfundamental signals up to half the sampling frequency (fS/2), excluding dc. The ratio is dependent upon the number of quantization levels in the digitization process; the more levels, the smaller the quantization noise. The theoretical signal to (noise ...
... the fundamental. Noise is the rms sum of all nonfundamental signals up to half the sampling frequency (fS/2), excluding dc. The ratio is dependent upon the number of quantization levels in the digitization process; the more levels, the smaller the quantization noise. The theoretical signal to (noise ...
Soft Starters: the better start in a gentle manner
... Generally a distinction is made between two design versions: • For simple tasks: - Use with small ratings. - These devices prove their value with simple applications where smooth, judder free operation is desired in the start phase. - Simple handling. - Compact construction type - Simple power comp ...
... Generally a distinction is made between two design versions: • For simple tasks: - Use with small ratings. - These devices prove their value with simple applications where smooth, judder free operation is desired in the start phase. - Simple handling. - Compact construction type - Simple power comp ...
1. INTRODUCTION The history of semiconductor devices starts in
... nonlinear RF components giving rise undesired spurs in the RF circuit’s outputs. Moreover, RF circuits require their own set of active and passive components. Foremost is the need for a high-speed, low-noise bipolar transistor. CMOS devices have yet to demonstrate that they can be used in high volum ...
... nonlinear RF components giving rise undesired spurs in the RF circuit’s outputs. Moreover, RF circuits require their own set of active and passive components. Foremost is the need for a high-speed, low-noise bipolar transistor. CMOS devices have yet to demonstrate that they can be used in high volum ...
Technical Note - Copley Controls
... In a transient condition, the motor can tolerate a certain amount of energy in excess of the continuous limit. The amount of overload energy the motor can handle is dependent on the motor size, cooling methods and configuration. For a given motor with winding resistance RL the energy dissipated in e ...
... In a transient condition, the motor can tolerate a certain amount of energy in excess of the continuous limit. The amount of overload energy the motor can handle is dependent on the motor size, cooling methods and configuration. For a given motor with winding resistance RL the energy dissipated in e ...
SP3232EU 数据资料DataSheet下载
... 0.1µF capacitors in 3.3V operation. This charge pump allows the SP3222EU and the 3232EU to deliver true RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The ESD tolerance of the SP3222EU/3232EU devices are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge t ...
... 0.1µF capacitors in 3.3V operation. This charge pump allows the SP3222EU and the 3232EU to deliver true RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The ESD tolerance of the SP3222EU/3232EU devices are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge t ...
LM35 Precision Centigrade Temperature Sensors (Rev. G)
... temperature devices with an output voltage linearlyproportional to the Centigrade temperature. The LM35 device has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scali ...
... temperature devices with an output voltage linearlyproportional to the Centigrade temperature. The LM35 device has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scali ...
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.