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AD8271 数据手册DataSheet 下载
AD8271 数据手册DataSheet 下载

... by the associated rise in junction temperature (TJ) on the die. At approximately 150°C, which is the glass transition temperature, the properties of the plastic change. Even temporarily exceeding this temperature limit may change the stresses that the package exerts on the die, permanently shifting ...
RSDA-660-75-100 Datasheet
RSDA-660-75-100 Datasheet

Número de publicación
Número de publicación

UBA20271/2 350 V and 600 V Power ICs for dimmable compact
UBA20271/2 350 V and 600 V Power ICs for dimmable compact

Tesla coil theoretical model and experimental verification
Tesla coil theoretical model and experimental verification

... length coordinate is gradually increasing with a maximum in its output. General transformer output voltage is proportional to ratio of secondary and primary winding number of winds. Tesla transformer output voltage does not correspond to this regularity, it is many times higher. To get high voltage ...
EL2001 Tech Sheet - Balboa Water Group
EL2001 Tech Sheet - Balboa Water Group

... Any time you change DIP Switches or Software Configuration Settings that affect parameters the user can change (any filter settings, set temperature default, Celsius vs Fahrenheit, 12-hour vs 24-hour time, reminders suppression, etc), you must reset Persistent Memory for your DIP Switch or Software ...
owner`s manual - Audio networking
owner`s manual - Audio networking

... Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point they exit from the apparatus. Only use attachments/accessories provided by the manufacturer. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or ...
LT4356-3 - Linear Technology
LT4356-3 - Linear Technology

NEW Products
NEW Products

PDF: 317KB
PDF: 317KB

... sufficient for control of transient voltages. These configurations are shown in Figure 3.7. The capacitance needed in a given application is difficult to estimate. The capacitor must be made large enough to avoid sympathetic oscillations in the LC circuit formed by the capacitor and the parasitic DC ...
Input Diodes for ac Coupled Circuits
Input Diodes for ac Coupled Circuits

... • In the cases with back-to-back diodes the input coupling capacitor charges during the fast edge of the sawtooth waveform. • In the case of amplifiers without back-to-back diodes the input capacitor is not charged. • For this type of application you need to use amplifiers without back-to-back input ...
2. IE_Transducer
2. IE_Transducer

... 6. Nonlinearity The nonlinearity indicates the maximum deviation of the actual measured curve of a sensor from the ideal curve. Figure 2.2 shows a somewhat exaggerated relationship between the ideal, or least squares fit, line and the actual measured or calibration line. Linearity is often specified ...
Chapter 3: Resistive Network Analysis – Instructor Notes
Chapter 3: Resistive Network Analysis – Instructor Notes

... analogies between electrical and thermal circuit elements. These analogies are to be encountered again in Chapter 5. A brief discussion of the principle of superposition precedes the discussion of Thèvenin and Norton equivalent circuits. Again, the presentation is rich in examples and drill exercise ...
LTC6948 - Linear Technology
LTC6948 - Linear Technology

Vacuum circuit-breaker up to 36 kV
Vacuum circuit-breaker up to 36 kV

... devices in case of short-circuits and overcurrent. Once the protector reacts, the release is excited by the transformer current, thus caus­ ing the switch to be tripped. These releases are supplied for transformer secondary currents of 0.5 A, 1 A and 5 A. ...
Lecture 14
Lecture 14

... 14.3 Dynamic MOS Logic Families When power consumption and physical size are prime design consideration, as in digital watches and calculators, Dynamic MOS logic is the one to meet those requirements. Power consumption is minimized by relying on the inherent capacitance of MOS transistors to store ...
- Institut d`Electronique Fondamentale
- Institut d`Electronique Fondamentale

... One possible solution involves the use of perpendicular magnetic anisotropy (PMA) in CoFeB/MgO structures [15]– [17], because it allows high-energy barriers to be attained for small size structures < 40 nm while maintaining the possibility for fast-speed operation, high TMR ratios, and low threshold ...
5 HP – 30 HP Single-Phase to Three
5 HP – 30 HP Single-Phase to Three

Electrical Circuits
Electrical Circuits

... Control device − The simplest control device is a switch. A switch opens or closes the path for current. Close the switch and current is present to operate the load. Open the switch and current stops. The load no longer operates. A control device can do more than just turn the load on or off. It can ...
Elmas Soyak - Department Of | Electrical And Electronics Engineering
Elmas Soyak - Department Of | Electrical And Electronics Engineering

... times it has been charged/ discharged in a fixed time interval, the relative capacitance can be measured. At each charging/discharging, the oscillator oscillates and the positive/negative edges are counted. If there is a dielectric material connected, then the counted number is less than the nominal ...
UM10392 UBA2024T SO14 13 W demo board User manual
UM10392 UBA2024T SO14 13 W demo board User manual

High Pressure Measurements with the High Pressure Microphone
High Pressure Measurements with the High Pressure Microphone

Chapter 1: Introduction to CMOS Circuits
Chapter 1: Introduction to CMOS Circuits

... Empirical formulas to compute these capacitance values are given in Weste text book. ...
VSLB3948
VSLB3948

HIGH-CURRENT RTP DEVICES Reflowable Thermal Protection For High-Power Automotive
HIGH-CURRENT RTP DEVICES Reflowable Thermal Protection For High-Power Automotive

... Method Of Operation – Electronic Arming The RTP device is a unique thermal protector. It can be reflowed at temperatures up to 260°C without opening, yet in operation it will open at temperatures well below 260°C. To achieve this functionality, the RTP device uses an electronic arming mechanism. Ele ...
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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.
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