UCC28220-Q1 数据资料 dataSheet 下载
... Until VDD reaches its UVLO threshold, the device remains in low-power mode, drawing approximately 150 µA of current and forcing pins SS, CS1, CS2, OUT1, and OUT2 to logic 0 states. If VDD falls below 8 V after reaching the turn-on threshold, the device returns to the low-power state. The UVLO turn-o ...
... Until VDD reaches its UVLO threshold, the device remains in low-power mode, drawing approximately 150 µA of current and forcing pins SS, CS1, CS2, OUT1, and OUT2 to logic 0 states. If VDD falls below 8 V after reaching the turn-on threshold, the device returns to the low-power state. The UVLO turn-o ...
MAX1489E ±15kV ESD-Protected, Quad, Low-Power RS-232 Line Receiver _______________General Description
... The major difference between tests done using the Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2. Because series resistance is lower in the IEC1000-4-2 ESD test model (Figure 3a), the ESD withstand voltage measured to this standard is generally lower than that measured using ...
... The major difference between tests done using the Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2. Because series resistance is lower in the IEC1000-4-2 ESD test model (Figure 3a), the ESD withstand voltage measured to this standard is generally lower than that measured using ...
AP7313
... to cool down. When the junction temperature reduces to approximately +125°C the output circuitry is enabled again. Depending on power dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the heat dissipation of the regulat ...
... to cool down. When the junction temperature reduces to approximately +125°C the output circuitry is enabled again. Depending on power dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the heat dissipation of the regulat ...
ASSIGNMENT MEELC303 1 A 1500 nF capacitor is connected in
... 2 An e.m.f. of 2 kV is induced in a coil when a current of 5A collapses uniformly to zero in 10 ms. Determine the inductance of the coil. [4 H] 3 An average e.m.f. of 60V is induced in a coil of inductance 160mH when a current of 7.5A is reversed. alculate the time taken for the current to reverse. ...
... 2 An e.m.f. of 2 kV is induced in a coil when a current of 5A collapses uniformly to zero in 10 ms. Determine the inductance of the coil. [4 H] 3 An average e.m.f. of 60V is induced in a coil of inductance 160mH when a current of 7.5A is reversed. alculate the time taken for the current to reverse. ...
The ALABUF chip.
... such an amplifier is extremely power consuming and hence cannot be implemented in output buffer of a single front-end chip. A structure with an output buffer shared over many front-end chips is much more reasonable solution (see Fig.1). All the more, the buffer could diminish external disturbances w ...
... such an amplifier is extremely power consuming and hence cannot be implemented in output buffer of a single front-end chip. A structure with an output buffer shared over many front-end chips is much more reasonable solution (see Fig.1). All the more, the buffer could diminish external disturbances w ...
±5V, 250mA Dual Output Power Supply (Rev. A)
... The inverting buck-boost converter's switching frequency varies slightly with operating conditions, but is approximately 1.7 MHz for most operating conditions. 8.3.2.2 Output Voltage (VNEG) The inverting buck-boost converter's output voltage is factory-programmed to –5.0 V ±1.0% and cannot be change ...
... The inverting buck-boost converter's switching frequency varies slightly with operating conditions, but is approximately 1.7 MHz for most operating conditions. 8.3.2.2 Output Voltage (VNEG) The inverting buck-boost converter's output voltage is factory-programmed to –5.0 V ±1.0% and cannot be change ...
Design of Wideband High Gain and Low Noise Amplifiers
... feedback network deteriorates NF and lowers the maximum power gain of transistor. Another widely used negative feedback technology is the source inductive degeneration LS [4], [9], [10], which enhances circuit stability, achieves noise matching, and provides good linearity. However, its small induct ...
... feedback network deteriorates NF and lowers the maximum power gain of transistor. Another widely used negative feedback technology is the source inductive degeneration LS [4], [9], [10], which enhances circuit stability, achieves noise matching, and provides good linearity. However, its small induct ...
Ghghghghgh
... A check of its correspondence to SI system is stipulated by the necessity to get firm information concerning a correct conversion of electrical energy into other types of energy, for example, into thermal energy [6]. But nobody does it; everybody places confidence in the mathematicians who elaborate ...
... A check of its correspondence to SI system is stipulated by the necessity to get firm information concerning a correct conversion of electrical energy into other types of energy, for example, into thermal energy [6]. But nobody does it; everybody places confidence in the mathematicians who elaborate ...
Characterization and control of the IST RealProbe
... RedPitaya is able to run the code, acquire data and update the PID controller at a frequency of 10 KHz, which for this purposes is more than enough. To send to the data generated by the controller to the webserver I use the buffer of channel 2 of the oscilloscope. This was done in order not to modif ...
... RedPitaya is able to run the code, acquire data and update the PID controller at a frequency of 10 KHz, which for this purposes is more than enough. To send to the data generated by the controller to the webserver I use the buffer of channel 2 of the oscilloscope. This was done in order not to modif ...
OPA684 Low-Power, Current Feedback OPERATIONAL AMPLIFIER With Disable FEATURES
... output headroom requirement is complemented by a similar 1.2V input stage headroom giving exceptional capability for single +5V operation. The OPA684’s low 1.7mA supply current is precisely trimmed at 25°C. This trim, along with low shift over temperature and supply voltage, gives a very robust desi ...
... output headroom requirement is complemented by a similar 1.2V input stage headroom giving exceptional capability for single +5V operation. The OPA684’s low 1.7mA supply current is precisely trimmed at 25°C. This trim, along with low shift over temperature and supply voltage, gives a very robust desi ...
MAX1800 Digital Camera Step-Up Power Supply General Description
... The MAX1800 provides a complete power-supply solution for digital still cameras and video cameras. The device integrates a high-efficiency main step-up DC-DC converter, three auxiliary step-up controllers, and an uncommitted gain block that drives an external P-channel MOSFET for a linear regulator. ...
... The MAX1800 provides a complete power-supply solution for digital still cameras and video cameras. The device integrates a high-efficiency main step-up DC-DC converter, three auxiliary step-up controllers, and an uncommitted gain block that drives an external P-channel MOSFET for a linear regulator. ...
Chapter9-Lect1 - faraday - Eastern Mediterranean University
... (120 V at 60 Hz) versus (220 V at 50 Hz) AC In North and South America the most common available ac supply is 120 V at 60 Hz, while in Europe and the Eastern countries it is 220 V at 50 Hz. Technically there is no noticeable difference between 50 and 60 cycles per second (Hz). The effect of f ...
... (120 V at 60 Hz) versus (220 V at 50 Hz) AC In North and South America the most common available ac supply is 120 V at 60 Hz, while in Europe and the Eastern countries it is 220 V at 50 Hz. Technically there is no noticeable difference between 50 and 60 cycles per second (Hz). The effect of f ...
DAC2902 数据资料 dataSheet 下载
... segmented current sources that are designed to deliver a fullscale output current of up to 20mA, as shown in Figure 1. An internal decoder addresses the differential current switches each time the DAC is updated and a corresponding output current is formed by steering all currents to either output s ...
... segmented current sources that are designed to deliver a fullscale output current of up to 20mA, as shown in Figure 1. An internal decoder addresses the differential current switches each time the DAC is updated and a corresponding output current is formed by steering all currents to either output s ...
ELECTRONIC MEASUREMENTS AND INSTRUMENTATION
... spring component of a weighing balance. Figure (b) shows how an electronic amplifier might settle down after being turned on. Drift is also caused by variations in environmental parameters such as temperature, pressure, and humidity that operate on the components. These are known as influence paramete ...
... spring component of a weighing balance. Figure (b) shows how an electronic amplifier might settle down after being turned on. Drift is also caused by variations in environmental parameters such as temperature, pressure, and humidity that operate on the components. These are known as influence paramete ...
CSCI 2980: Introduction to Circuits, CAD, and Instrumentation
... Op-amp is the single most important integrated circuit (IC) for analog circuit design; it has been extensively used in circuit design at all levels. Op-amp is consisted of individual transistors and resistors interconnected on a printed circuit board (PCB) Op-amp was originally designed to perform m ...
... Op-amp is the single most important integrated circuit (IC) for analog circuit design; it has been extensively used in circuit design at all levels. Op-amp is consisted of individual transistors and resistors interconnected on a printed circuit board (PCB) Op-amp was originally designed to perform m ...
SOUNDCRAFT CPS250 CPS275 Console Power Supply
... The constant-current protection system works in the standard way; when an attempt is made to draw excessive current, the output voltage is reduced so that no more than a fixed maximum can be drawn. However, the high current capability of this PSU means that long-term constant-current protection alo ...
... The constant-current protection system works in the standard way; when an attempt is made to draw excessive current, the output voltage is reduced so that no more than a fixed maximum can be drawn. However, the high current capability of this PSU means that long-term constant-current protection alo ...
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.