Bipolar Junction Transistors
... varies with bias current and impedance matching. The best noise figure for a transistor is achieved at lower bias current, and possibly with an impedance mismatch. Thermal mismatch (problem with paralleling transistors) If two identical power transistors were paralleled for higher current, one would ...
... varies with bias current and impedance matching. The best noise figure for a transistor is achieved at lower bias current, and possibly with an impedance mismatch. Thermal mismatch (problem with paralleling transistors) If two identical power transistors were paralleled for higher current, one would ...
SAGs and SWELLs
... increase (100 MHz clocks are becoming more prevalent), and the voltage supplies decrease (3Vdc logic is also becoming more prevalent), the vulnerability to such disturbances increases. Reduction in ride-through times of power supplies increases the vulnerability of the equipment to sags. The effects ...
... increase (100 MHz clocks are becoming more prevalent), and the voltage supplies decrease (3Vdc logic is also becoming more prevalent), the vulnerability to such disturbances increases. Reduction in ride-through times of power supplies increases the vulnerability of the equipment to sags. The effects ...
Sizing gensets for motor starting
... Solid-state (soft-start) starters – This type of starter is most popular and provides exceptional operating flexibility. It is a form of reduced-voltage starter that utilizes silicon controlled rectifiers (SCRs) to increase voltage at a predetermined rate. Limits on the starting current can also be ...
... Solid-state (soft-start) starters – This type of starter is most popular and provides exceptional operating flexibility. It is a form of reduced-voltage starter that utilizes silicon controlled rectifiers (SCRs) to increase voltage at a predetermined rate. Limits on the starting current can also be ...
A lot thanks go to Head of Computer Department Dr. Luai Malhis
... consumption versus processing speed. ...
... consumption versus processing speed. ...
THROTTLE POSITION SENSOR (TPS)—FUNCTION
... information from these three (3) areas based on vehicle load to generate three (3) independent values. The three (3) independent values will be continuously monitored by the PCM. If one (1) of the values differs significantly from the others during normal vehicle operation, a Continuous Memory Diagn ...
... information from these three (3) areas based on vehicle load to generate three (3) independent values. The three (3) independent values will be continuously monitored by the PCM. If one (1) of the values differs significantly from the others during normal vehicle operation, a Continuous Memory Diagn ...
Design and Analysis of Track and Hold Circuit for high
... for track and hold amplifiers (T&H) operating at RF frequencies. A very fast and linear T & H circuit is the key element in any modern wideband data acquisition system. Applications like a cable-TV or a broad variety of different radio standards require high processing speeds with high resolution. T ...
... for track and hold amplifiers (T&H) operating at RF frequencies. A very fast and linear T & H circuit is the key element in any modern wideband data acquisition system. Applications like a cable-TV or a broad variety of different radio standards require high processing speeds with high resolution. T ...
WT500 Power Analyzer
... kitchen appliances and hot water heaters has grown in popularity, and there is increased demand for Induction Heating Cookers and other Electrical Appliances that are promoted as being safer than gas-operated stoves. A large amount of current is applied and converted to heat in order to increase the ...
... kitchen appliances and hot water heaters has grown in popularity, and there is increased demand for Induction Heating Cookers and other Electrical Appliances that are promoted as being safer than gas-operated stoves. A large amount of current is applied and converted to heat in order to increase the ...
Chapter 10
... Decibel A logarithmic measure of the ratio of one power level to another or one voltage to another. Midrange gain The gain that occurs for the range of frequencies between the lower and upper critical frequencies. Critical The frequency at which the response of an frequency amplifier or filter is 3 ...
... Decibel A logarithmic measure of the ratio of one power level to another or one voltage to another. Midrange gain The gain that occurs for the range of frequencies between the lower and upper critical frequencies. Critical The frequency at which the response of an frequency amplifier or filter is 3 ...
26725 Demonstrate and apply knowledge of electronic product
... capacitors, discharge of capacitor through protection circuits, latch-up of voltage regulators due to reverse biasing, signal voltage applied to input of CMOS device with power off. Evidence of three is required. ...
... capacitors, discharge of capacitor through protection circuits, latch-up of voltage regulators due to reverse biasing, signal voltage applied to input of CMOS device with power off. Evidence of three is required. ...
Four-Channel DC/DC Controller for Notebook
... When an OVP or UVP comparator output becomes high, the SCP circuit starts to charge the SCP capacitor. The charging source current value is different between OVP alert and UVP alert. SCP source current (OVP) = SCP source current (UVP) × 5 The threshold voltage of SCP comparator is 1.185 V. power goo ...
... When an OVP or UVP comparator output becomes high, the SCP circuit starts to charge the SCP capacitor. The charging source current value is different between OVP alert and UVP alert. SCP source current (OVP) = SCP source current (UVP) × 5 The threshold voltage of SCP comparator is 1.185 V. power goo ...
MAX2370 Complete 450MHz Quadrature Transmitter General Description Features
... Differential IF Outputs. This port is active when IF_SEL is LOW and supports both FM and CDMA modes. IFOUT+ and IFOUT- must be inductively pulled up to VCC and differentially loaded with typically 560Ω. A 400Ω differential IF bandpass filter is connected between this port and IFIN+/-. IFOUT-, IFOUT+ ...
... Differential IF Outputs. This port is active when IF_SEL is LOW and supports both FM and CDMA modes. IFOUT+ and IFOUT- must be inductively pulled up to VCC and differentially loaded with typically 560Ω. A 400Ω differential IF bandpass filter is connected between this port and IFIN+/-. IFOUT-, IFOUT+ ...
SZA-5044(Z) 4.9GHz to 5.9GHz 5V POWER AMPLIFIER Features Product Description
... VPC1 is the bias control pin for the stage 1 active bias circuit and can be run from 2.9Vto5V control. An external series resistor is required for proper setting of bias levels depending on control voltage. Refer to the evaluation board schematic for resistor value. To prevent potential damage, do n ...
... VPC1 is the bias control pin for the stage 1 active bias circuit and can be run from 2.9Vto5V control. An external series resistor is required for proper setting of bias levels depending on control voltage. Refer to the evaluation board schematic for resistor value. To prevent potential damage, do n ...
MICROWAVE MONOLITHIC POWER AMPLIFIER DESIGN
... next-level assembly at some assumed level of power dissipation. This is the MMIC backside temperature that one would use for thermal analysis to determine transistor channel temperature. TRANSISTOR CELL SELECTION AND DESIGN The next task is the design and selection of an appropriate transistor cell ...
... next-level assembly at some assumed level of power dissipation. This is the MMIC backside temperature that one would use for thermal analysis to determine transistor channel temperature. TRANSISTOR CELL SELECTION AND DESIGN The next task is the design and selection of an appropriate transistor cell ...
smart pv inverters
... >>GPTech Smart PVWD inverters comply with the most demanding grid codes in the world. They adapt to the necessities of any market due to a flexible power operation range depending on the power factor. With an easy integration to the grid and low power consumption, these devices offer remote control ...
... >>GPTech Smart PVWD inverters comply with the most demanding grid codes in the world. They adapt to the necessities of any market due to a flexible power operation range depending on the power factor. With an easy integration to the grid and low power consumption, these devices offer remote control ...
ADS807 数据资料 dataSheet 下载
... Employing dual-supply amplifiers and AC-coupling will usually yield the best results, while DC-coupling and/or singlesupply amplifiers impose additional design constraints due to their headroom requirements, especially when selecting the 3Vp-p input range. However, single-supply amplifiers have the ...
... Employing dual-supply amplifiers and AC-coupling will usually yield the best results, while DC-coupling and/or singlesupply amplifiers impose additional design constraints due to their headroom requirements, especially when selecting the 3Vp-p input range. However, single-supply amplifiers have the ...
Noise on Vcc Webinar - Wireless Telecom Group
... Limited resources to filter noise SMPS designers attempt to suppress this switching noise by using low pass filters (LPF) or bypass capacitors. However limited PCB space and cost can limit filtering capabilities hence noise can still be conducted and radiated into the surrounding circuits as EMI/RFI ...
... Limited resources to filter noise SMPS designers attempt to suppress this switching noise by using low pass filters (LPF) or bypass capacitors. However limited PCB space and cost can limit filtering capabilities hence noise can still be conducted and radiated into the surrounding circuits as EMI/RFI ...
Analog vs. Digital - SparkFun Electronics
... It’s not rare to see a mixture of analog and digital components in a circuit. Although microcontrollers are usually digital beasts, they often have internal circuitry which enables them to interface with analog circuitry (analog-to-digital converters, pulse-width modulation, and digital-to-analog co ...
... It’s not rare to see a mixture of analog and digital components in a circuit. Although microcontrollers are usually digital beasts, they often have internal circuitry which enables them to interface with analog circuitry (analog-to-digital converters, pulse-width modulation, and digital-to-analog co ...
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.