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LT1571 - Constant-Current/Constant-Voltage
LT1571 - Constant-Current/Constant-Voltage

(Dynamic) Voltage (Frequency)
(Dynamic) Voltage (Frequency)

... The power-supply is programmed to power up with the nominal voltage that the processor domain requires for the desired worst-case (weak silicon) boot-OPP. Voltage specifications for boot time are generally provided in the processor data sheet. After booting, the processor communicates the AVSvoltage ...
Paper Title (use style: paper title)
Paper Title (use style: paper title)

Article - I
Article - I

... To demonstrate an application of the proposed floating capacitor of Fig.3, it is employed in the RLC bandpass filter as shown in Fig.5. The floating capacitor circuit is simulated with the following component values : C1 = 1 nF and gmF1 = gmS1 = gmF2 = gmS2  0.27 mA/V (IBF1 = IBS1 = IBF2 = IBS2 = 2 ...
Chapter 32.
Chapter 32.

74VHC161284 IEEE 1284 Transceiver 7 4
74VHC161284 IEEE 1284 Transceiver 7 4

... standards for bidirectional parallel communications between personal computers and printing peripherals ...
TPS54160-Q1 数据资料 dataSheet 下载
TPS54160-Q1 数据资料 dataSheet 下载

... The TPS54160 device is a 60-V 1.5-A step-down (buck) regulator with an integrated high-side n-channel MOSFET. To improve performance during line and load transients the device implements a constant frequency, current mode control which reduces output capacitance and simplifies external frequency com ...
Generating multicolor light using RGB LEDs
Generating multicolor light using RGB LEDs

... drivers STP04CM596 so the color can be regulated. The STP04CM596 is a high-power LED driver with 4-bit shift register designed for power LED applications. In the output stage, four regulated current sources provide 80-500 mA constant current to drive high power LEDs. Figure 2 shows the driving conce ...
ISSCC 2015 / SESSION 22 / HIGH
ISSCC 2015 / SESSION 22 / HIGH

A Novel Universal Sensor Concept for Survivable PMSM Drives Yao
A Novel Universal Sensor Concept for Survivable PMSM Drives Yao

... This paper proposes the implementation of a novel universal sensor for position and current estimation in a PMSM. Search coils are mounted around stator teeth of each phase. Due to its ability to achieve position and current estimation without being effected by stator resistance variation, it improv ...
ADM6339 数据手册DataSheet 下载
ADM6339 数据手册DataSheet 下载

... The ADM6339 is a high accuracy supervisory circuit capable of monitoring up to four system supply voltages. The ADM6339 incorporates a variety of internally pretrimmed undervoltage threshold options for monitoring −5.0 V, +1.8 V, +2.5 V, +3.0 V, +3.3 V, and +5.0 V supply voltages. Tolerance levels o ...
Hyundai Accent 2005 Pump
Hyundai Accent 2005 Pump

... DTC Troubleshooting Procedures DTC - P2405 GENERAL DESCTIPTION The DM-TL (Diagnostic Module Tank Leakage) is used to monitor the evaporative system for leaks. The diagnostic module consists of an air filter, an electrical driven air pump, a change-over valve and a 0.02 inch orifice for reference mea ...
Technical Article 650V TRENCHSTOP 5
Technical Article 650V TRENCHSTOP 5

Aalborg Universitet Multilevel Modular Converter for VSC-HVDC Transmission Applications: Control and
Aalborg Universitet Multilevel Modular Converter for VSC-HVDC Transmission Applications: Control and

Comprehensive Design of a Three-Phase Three-Switch
Comprehensive Design of a Three-Phase Three-Switch

litemax lf1745
litemax lf1745

Table of Contents
Table of Contents

TGS2313 数据资料DataSheet下载
TGS2313 数据资料DataSheet下载

... Note: ± 20mA control lines (IControl_A, IControl_B, IControl_C) use on-chip resistors for diode current control. ...
Optimum Noise Filtering
Optimum Noise Filtering

... o Bulk capacitor: Large value tantalum devices. o Parallel capacitor: A tantalum capacitor has an equivalent series resistance (ESR) of 0.5 to 1  at high frequencies – a ceramic capacitor, because of its negligibly low ESR, connected in parallel often provides better decoupling. ...
IEEE Transactions on Magnetics
IEEE Transactions on Magnetics

R.M.A. Dawson, M.H. Lu, J.C. Sturm et al, "Impact of transient response of organic light emitting diodes on the design of active matrix OLED displays," Tech. Dig. Int. Elec. Dev. Mtg., pp. 875-878 (1998).
R.M.A. Dawson, M.H. Lu, J.C. Sturm et al, "Impact of transient response of organic light emitting diodes on the design of active matrix OLED displays," Tech. Dig. Int. Elec. Dev. Mtg., pp. 875-878 (1998).

... voltage source, so it does not significantly affect the voltage level across the diode. This implies that when the OLED is first tumed on, a large current flows to charge the parallel capacitance. The traps in the hole and electron transport materials are then filled by the constant current associat ...
to this file: /unr15-25w
to this file: /unr15-25w

OPA2830
OPA2830

... small MSOP-8 package. For fixed-gain and line driver applications, consider the OPA2832. ...
AD9057 数据手册DataSheet下载
AD9057 数据手册DataSheet下载

... The power dissipation of the AD9057 is specified to reflect a typical application setup under the following conditions: analog input is –0.5 dBFS at 10.3 MHz, VD is 5 V, VDD is 3 V, and digital outputs are loaded with 7 pF typical (10 pF maximum). The actual dissipation will vary as these conditions ...
Testing of Conducted Energy Weapons CPRC
Testing of Conducted Energy Weapons CPRC

... withdrawn after errors in calculations were revealed, indicated output discrepancies that were several times higher than specified by Taser International. Nonetheless, we believe it prudent to conduct output verification test on a random selection of Taser devices. These devices were supplied by var ...
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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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