Lesson 4 – Circuits and Resistance
... resistor are vibrating rapidly than if they are vibrating slowly. For this reason, the resistance of most materials increases with temperature. However, the resistance of some materials actually decreases with temperature. One such material is graphite, which is used to make most resistors. Graphite ...
... resistor are vibrating rapidly than if they are vibrating slowly. For this reason, the resistance of most materials increases with temperature. However, the resistance of some materials actually decreases with temperature. One such material is graphite, which is used to make most resistors. Graphite ...
DT1452-02SO Features Mechanical Data
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
noise
... Pn = noise power in watts en = noise voltage in volts rms k = 1.38 x 10-23 J/°K T = temperature in °K f = bandwidth of circuit/system in Hz Pink noise - also known as 1/f noise Amplitude is 1/f Of little consequence except at low frequencies Should be infinite @ an infinite period - "big bang" Shot ...
... Pn = noise power in watts en = noise voltage in volts rms k = 1.38 x 10-23 J/°K T = temperature in °K f = bandwidth of circuit/system in Hz Pink noise - also known as 1/f noise Amplitude is 1/f Of little consequence except at low frequencies Should be infinite @ an infinite period - "big bang" Shot ...
AD8381 数据手册DataSheet 下载
... The AD8381 is a system building block designed to directly drive the columns of LCD panels of the type popularized for use in data projectors. It comprises six channels of precision 10-bit digital-to-analog converters loaded from a single, high speed, 10-bit-wide input. Precision current feedback am ...
... The AD8381 is a system building block designed to directly drive the columns of LCD panels of the type popularized for use in data projectors. It comprises six channels of precision 10-bit digital-to-analog converters loaded from a single, high speed, 10-bit-wide input. Precision current feedback am ...
TPS76901 数据资料 dataSheet 下载
... more conventional PNP-pass-element LDO designs. The PMOS pass element is a voltage-controlled device and, unlike a PNP transistor, it does not require increased drive current as output current increases. Supply current in the TPS769xx is essentially constant from no load to maximum load. Current lim ...
... more conventional PNP-pass-element LDO designs. The PMOS pass element is a voltage-controlled device and, unlike a PNP transistor, it does not require increased drive current as output current increases. Supply current in the TPS769xx is essentially constant from no load to maximum load. Current lim ...
MAX1406 ±15kV ESD-Protected, EMC-Compliant, 230kbps, 3-Tx/3-Rx RS-232 IC _______________General Description
... 2b shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5kΩ resistor. IEC1000-4-2 The IEC1000-4-2 standard covers ESD testing and performance ...
... 2b shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5kΩ resistor. IEC1000-4-2 The IEC1000-4-2 standard covers ESD testing and performance ...
Protection and control HV/MV substation Sepam
... c highly sensitive earth fault protection for in coming feeders supplied with power by a long cable (high capacitive current), c highly sensitive earth fault protection for long incomers characterized by high capacitive current. ...
... c highly sensitive earth fault protection for in coming feeders supplied with power by a long cable (high capacitive current), c highly sensitive earth fault protection for long incomers characterized by high capacitive current. ...
High-Voltage Signal Conditioning for Low
... OPA725, which is suitable for bipolar stages with ±5V rails. The second stage op amp is the OPA364. This outstanding, low-voltage op amp offers many assets which are ideal at this stage: it is low-voltage and low-power, in addition to having a large input common-mode voltage range. It also has zero ...
... OPA725, which is suitable for bipolar stages with ±5V rails. The second stage op amp is the OPA364. This outstanding, low-voltage op amp offers many assets which are ideal at this stage: it is low-voltage and low-power, in addition to having a large input common-mode voltage range. It also has zero ...
S2000C
... Combination audible/visual appliances shall incorporate a Xenon flashtube enclosed in a rugged Lexan® lens or equivalent with solid state circuitry. Strobe shall produce a flash rate of one (1) flash per second minimum over the voltage range. The strobe intensity shall be rated per CAN/ULC-S525-99 f ...
... Combination audible/visual appliances shall incorporate a Xenon flashtube enclosed in a rugged Lexan® lens or equivalent with solid state circuitry. Strobe shall produce a flash rate of one (1) flash per second minimum over the voltage range. The strobe intensity shall be rated per CAN/ULC-S525-99 f ...
MAX16929 Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators
... 1.8V or 3.3V Regulator Feedback Input. FB is regulated to 1.8V or 3.3V. Connect FB to DR when powering loads demanding less than 4.5mA. For greater output current capability, use an external npn bipolar transistor whose emitter is connected to FB. ...
... 1.8V or 3.3V Regulator Feedback Input. FB is regulated to 1.8V or 3.3V. Connect FB to DR when powering loads demanding less than 4.5mA. For greater output current capability, use an external npn bipolar transistor whose emitter is connected to FB. ...
Instructions
... • CAUTION: If the Generator Owner uses the 27 function for tripping, the following conditions must be met at a minimum: Time delay of the undervoltage function trip must be longer than the greater of the local or remote backup clearing times for all transmission elements connected to the high-side b ...
... • CAUTION: If the Generator Owner uses the 27 function for tripping, the following conditions must be met at a minimum: Time delay of the undervoltage function trip must be longer than the greater of the local or remote backup clearing times for all transmission elements connected to the high-side b ...
HIGH-VOLTAGE IMPULSE TEST SYSTEMS
... Compensation of overshoots The CP integrates impulse voltage divider, chopping gap, and overshoot compensation into one device. If one component is not required, the CP can also be implemented in a reduced configuration. Thanks to its compact design, the CP requires less floor space. Furthermore, ...
... Compensation of overshoots The CP integrates impulse voltage divider, chopping gap, and overshoot compensation into one device. If one component is not required, the CP can also be implemented in a reduced configuration. Thanks to its compact design, the CP requires less floor space. Furthermore, ...
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.