Regulated Cascode TIA
... Therefore, regulated cascode (RGC) configuration is exploited as the input stage of a transimpedance amplifier (TIA). RGC TIAs were previously reported in [10]–[12], and this work shares the basic configuration with the previous RGC TIAs with appropriate modifications for higher speed operation. The ...
... Therefore, regulated cascode (RGC) configuration is exploited as the input stage of a transimpedance amplifier (TIA). RGC TIAs were previously reported in [10]–[12], and this work shares the basic configuration with the previous RGC TIAs with appropriate modifications for higher speed operation. The ...
Chap 2
... CD = T I/Vt = TT I/Vt diffusion cap EX IF a Diode is forward biased by a ID = 0.1mA current find the small signal ac model for a the diode the on voltage (VDQ) across the diode. Assume a Si diode with n=N=1, TT= 27.5nS, CJ0 = 8.3pFd and Is= IS= 2fA rd = nVt /I = 25mV/0.1mA = 250 ohms CD = (27.5nS) ...
... CD = T I/Vt = TT I/Vt diffusion cap EX IF a Diode is forward biased by a ID = 0.1mA current find the small signal ac model for a the diode the on voltage (VDQ) across the diode. Assume a Si diode with n=N=1, TT= 27.5nS, CJ0 = 8.3pFd and Is= IS= 2fA rd = nVt /I = 25mV/0.1mA = 250 ohms CD = (27.5nS) ...
INSTRUCTIONS FOR
... When the scale of the value to be measured is unknown set the selector to the highest range available. Before rotating the range selector to change functions, disconnect test leads from the circuit under test. WARNING! Never perform resistance measurements on live circuits. Always be care ...
... When the scale of the value to be measured is unknown set the selector to the highest range available. Before rotating the range selector to change functions, disconnect test leads from the circuit under test. WARNING! Never perform resistance measurements on live circuits. Always be care ...
A Low-Noise Self-Calibrating Dynamic Comparator for
... but also input transistors of the second latch stage. Therefore, the comparator sensitivity is improved by increasing the gain of the second latch stage. Moreover, the clock driving requirements are relaxed because the proposed comparator requires only a one phase clock. M12 and M13 are used to rese ...
... but also input transistors of the second latch stage. Therefore, the comparator sensitivity is improved by increasing the gain of the second latch stage. Moreover, the clock driving requirements are relaxed because the proposed comparator requires only a one phase clock. M12 and M13 are used to rese ...
SP481E 数据资料DataSheet下载
... RS-485 allows up to 32 drivers and 32 receivers to be connected to a data bus, making it an ideal choice for multi-drop applications. Since the cabling can be as long as 4,000 feet, RS-485 transceivers are equipped with a wide (-7V to +12V) common mode range to accommodate ground potential differenc ...
... RS-485 allows up to 32 drivers and 32 receivers to be connected to a data bus, making it an ideal choice for multi-drop applications. Since the cabling can be as long as 4,000 feet, RS-485 transceivers are equipped with a wide (-7V to +12V) common mode range to accommodate ground potential differenc ...
P. Cantillon-Murphy, T.C. Neugebauer, C. Brasca, and D.J. Perreault, “An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance,” IEEE Power Electronics Letters , Vol. 2, No. 2, June 2004, pp. 45-50.
... The choke should be capable of carrying a dc current of 20 A with a ripple voltage whose amplitude does not exceed 50 mV. It should present a common-mode impedance of greater than 1 to the windshield antenna over the entire AM range. This requires a minimum common-mode inductance of 1 mH, in order t ...
... The choke should be capable of carrying a dc current of 20 A with a ripple voltage whose amplitude does not exceed 50 mV. It should present a common-mode impedance of greater than 1 to the windshield antenna over the entire AM range. This requires a minimum common-mode inductance of 1 mH, in order t ...
DTC-IM drive with 5-level hybrid cascaded h-bridge
... of mathematically complex equation, however, requires high power computational processor particularly if the voltage levels are high [10, 11]. For this drawback some researcher preferred to use look-up table based switching signal generation [2] . Advantage of these approaches is simplicity yet good ...
... of mathematically complex equation, however, requires high power computational processor particularly if the voltage levels are high [10, 11]. For this drawback some researcher preferred to use look-up table based switching signal generation [2] . Advantage of these approaches is simplicity yet good ...
AD7841 数据手册DataSheet 下载
... The eight DAC outputs are buffered by op amps that share common VDD and VSS power supplies. If the dc load current changes in one channel (due to an update), this can result in a further dc change in one or another of the channel outputs. This effect is most obvious at high load currents and reduces ...
... The eight DAC outputs are buffered by op amps that share common VDD and VSS power supplies. If the dc load current changes in one channel (due to an update), this can result in a further dc change in one or another of the channel outputs. This effect is most obvious at high load currents and reduces ...
BDTIC www.BDTIC.com/infineon Resonant LLC Converter: Operation and Design 250W 33Vin 400Vout Design Example
... represent heavier loads. It’s also seen that all Q curves (load conditions) cross at the resonant frequency point (at Fx=1 or fs=fr) and have a unity gain. Figure 2.3 shows that all gain curves has peaks which define the boundary between the inductive and capacitive impedances of the resonant tank, ...
... represent heavier loads. It’s also seen that all Q curves (load conditions) cross at the resonant frequency point (at Fx=1 or fs=fr) and have a unity gain. Figure 2.3 shows that all gain curves has peaks which define the boundary between the inductive and capacitive impedances of the resonant tank, ...
SSC9522S Data Sheet
... and then the output power is more decreased. Thus, the output voltage cannot be kept constant. Since the winding current goes ahead of the winding voltage in the capacitance area, the operation with hard switching occurs in Q(H) and Q(L). Thus, the power loss increases. This operation in the capacit ...
... and then the output power is more decreased. Thus, the output voltage cannot be kept constant. Since the winding current goes ahead of the winding voltage in the capacitance area, the operation with hard switching occurs in Q(H) and Q(L). Thus, the power loss increases. This operation in the capacit ...
A General Approach for Brushed DC Machines Simulation Using a
... The aim of such a device is to measure the contact resistance versus the θ value; the use of the term of “resistance” suggests the behavior to be independent of the contact current. However, the layer located between the brush and the segment, and composed of a mixture of copper oxide and carbon dus ...
... The aim of such a device is to measure the contact resistance versus the θ value; the use of the term of “resistance” suggests the behavior to be independent of the contact current. However, the layer located between the brush and the segment, and composed of a mixture of copper oxide and carbon dus ...
Lecture 20 Bipolar Junction Transistors (BJT): Part 4 Small Signal
... F d active i mode d and thus, are derived under this condition. (Saturation and cutoff are used for switches which involve very large voltage/current swings from the on to off states.) ...
... F d active i mode d and thus, are derived under this condition. (Saturation and cutoff are used for switches which involve very large voltage/current swings from the on to off states.) ...
MAX5902/MAX5903 +72V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers General Description
... protection. During startup the circuit-breaker function is disabled and the MAX5902/MAX5903 limit the inrush current by gradually turning on the external MOSFET. Once the external MOSFET is fully enhanced, the circuit-breaker function is enabled and the MAX5902/MAX5903 provide overcurrent protection ...
... protection. During startup the circuit-breaker function is disabled and the MAX5902/MAX5903 limit the inrush current by gradually turning on the external MOSFET. Once the external MOSFET is fully enhanced, the circuit-breaker function is enabled and the MAX5902/MAX5903 provide overcurrent protection ...
Evaluates: MAX8822 MAX8822 Evaluation Kit General Description Features
... and tested PCB that demonstrates the MAX8822 ultraefficient negative charge-pump LED driver with dual LDOs. The MAX8822 drives up to four white LEDs (WLEDs) for backlighting and contains two 200mA, high power-supply-rejection-ratio (PSRR) LDOs to power external camera modules or other loads. The EV ...
... and tested PCB that demonstrates the MAX8822 ultraefficient negative charge-pump LED driver with dual LDOs. The MAX8822 drives up to four white LEDs (WLEDs) for backlighting and contains two 200mA, high power-supply-rejection-ratio (PSRR) LDOs to power external camera modules or other loads. The EV ...
Isolation and Regulation Transformer Operating Principles and
... unchanging voltage) dv/dt is zero and the current is also zero. Thus, capacitors block direct currents. As dv/dt increases or, as sinusoidal frequency increases, the current also increases for a constant capacitance. Thus, a capacitor blocks DC and passes AC. Because a capacitor is constructed with ...
... unchanging voltage) dv/dt is zero and the current is also zero. Thus, capacitors block direct currents. As dv/dt increases or, as sinusoidal frequency increases, the current also increases for a constant capacitance. Thus, a capacitor blocks DC and passes AC. Because a capacitor is constructed with ...
FDMS3669S PowerTrench Power Stage
... 1. Input ceramic bypass capacitors C1 and C2 must be placed close to the D1 and S2 pins of Power Stage to help reduce parasitic inductance and high frequency conduction loss induced by switching operation. C1 and C2 show the bypass capacitors placed close to the part between D1 and S2. Input capaci ...
... 1. Input ceramic bypass capacitors C1 and C2 must be placed close to the D1 and S2 pins of Power Stage to help reduce parasitic inductance and high frequency conduction loss induced by switching operation. C1 and C2 show the bypass capacitors placed close to the part between D1 and S2. Input capaci ...
MAX13202E/MAX13204E/MAX13206E/MAX13208E 2-/4-/6-/8-Channel, ±30kV ESD Protectors in µDFN General Description Features
... of diodes that steer ESD current pulses to VCC or GND. The MAX13202E/MAX13204E/MAX13206E/MAX13208E protect against ESD pulses up to ±15kV Human Body Model (HBM) and ±30kV Air-Gap Discharge, as specified in IEC 61000-4-2. These devices have a 6pF oncapacitance per channel, making them ideal for use o ...
... of diodes that steer ESD current pulses to VCC or GND. The MAX13202E/MAX13204E/MAX13206E/MAX13208E protect against ESD pulses up to ±15kV Human Body Model (HBM) and ±30kV Air-Gap Discharge, as specified in IEC 61000-4-2. These devices have a 6pF oncapacitance per channel, making them ideal for use o ...
LS7538-LS7539
... (1) Resistor should be placed adjacent to Pin 1. NOTE 1: Connect MODE (Pin 6) for desired Brightness Step Sequence (See Table 1). NOTE 2: A good PCB layout using through-hole components will provide protection for ESD introduced at the Touch Plate in the range of 25kV. Using surface mount components ...
... (1) Resistor should be placed adjacent to Pin 1. NOTE 1: Connect MODE (Pin 6) for desired Brightness Step Sequence (See Table 1). NOTE 2: A good PCB layout using through-hole components will provide protection for ESD introduced at the Touch Plate in the range of 25kV. Using surface mount components ...
Models 118 / 218 / 318
... B( )............................................................Alternate electrical connector (or wiring) Y( ).............................................................Alternate pressure connection G( )............................................................Alternate O-ring material DB...... ...
... B( )............................................................Alternate electrical connector (or wiring) Y( ).............................................................Alternate pressure connection G( )............................................................Alternate O-ring material DB...... ...
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.