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A 40 meters CW QRP Transceiver
... It employs a double tuned circuit, made using two common 10.7 MHz FM transfomers. In this manner a good withstanding was obtained against overloading signals and inter-modulation. The input is protected against over-voltages by two opposed diodes. An emitter-follower transistor transfers the signal ...
... It employs a double tuned circuit, made using two common 10.7 MHz FM transfomers. In this manner a good withstanding was obtained against overloading signals and inter-modulation. The input is protected against over-voltages by two opposed diodes. An emitter-follower transistor transfers the signal ...
(But Were Afraid To Ask) Part 1
... PROBLEMS DUE TO HARMONICS An observed characteristic of harmonic currents in a typical building distribution system is that odd-ordered harmonics (i.e., the 3rd, 5th, 7th, etc.) are usually larger in amplitude than even-ordered harmonics. Another observed effect is that single-phase non-linear loads ...
... PROBLEMS DUE TO HARMONICS An observed characteristic of harmonic currents in a typical building distribution system is that odd-ordered harmonics (i.e., the 3rd, 5th, 7th, etc.) are usually larger in amplitude than even-ordered harmonics. Another observed effect is that single-phase non-linear loads ...
投影片 1
... amplifier to achieve broadband and low noise. 3. The common source single-stage amplifier is cascaded to the conventional distributed amplifier to improve the gain at high frequency. 4. The measured a.gain of the integrated LNA is 10dB b.3dB bandwidth from 2.7 to 9.1 GHz c. average noise figure is 4 ...
... amplifier to achieve broadband and low noise. 3. The common source single-stage amplifier is cascaded to the conventional distributed amplifier to improve the gain at high frequency. 4. The measured a.gain of the integrated LNA is 10dB b.3dB bandwidth from 2.7 to 9.1 GHz c. average noise figure is 4 ...
Expt4
... Where = IC /IB is called common emitter current gain. In good transistor IC>>IB i.e. >>1. IC can also be expressed as IC = IE . where = /(1+) . is called common base current gain. For good transistor, is close to unity. Proper dc biasing of a transistor is a prerequisite for proper oper ...
... Where = IC /IB is called common emitter current gain. In good transistor IC>>IB i.e. >>1. IC can also be expressed as IC = IE . where = /(1+) . is called common base current gain. For good transistor, is close to unity. Proper dc biasing of a transistor is a prerequisite for proper oper ...
Switching Regulators
... Although these regulators are easily set up and extremely useful, they suffer from several limitations. The most serious limitation has to do with the efficiency of the regulator. Since these series regulators all rely on the variable voltage dropped across the series resistor of the power transisto ...
... Although these regulators are easily set up and extremely useful, they suffer from several limitations. The most serious limitation has to do with the efficiency of the regulator. Since these series regulators all rely on the variable voltage dropped across the series resistor of the power transisto ...
Stereo 160 - Goldpoint Level Controls
... bias settings need to be closely monitored because they go higher (by themselves) while the tubes burn-in. If a tube is operated with its bias setting a lot higher than it should be, the tube could actually burn out or cause other amplifier components to fail. The output tubes in your new Stereo 160 ...
... bias settings need to be closely monitored because they go higher (by themselves) while the tubes burn-in. If a tube is operated with its bias setting a lot higher than it should be, the tube could actually burn out or cause other amplifier components to fail. The output tubes in your new Stereo 160 ...
UNIVERSITY OF CALIFORNIA
... hand calcs to spice. (note: All of this goes directly into your final project report as well.) Problem 3: Amplifier or Oscillator? The circuit below consists of three CMOS inverters, and can be used as an amplifier or an oscillator, depending on the load capacitance. If we make the inverters such th ...
... hand calcs to spice. (note: All of this goes directly into your final project report as well.) Problem 3: Amplifier or Oscillator? The circuit below consists of three CMOS inverters, and can be used as an amplifier or an oscillator, depending on the load capacitance. If we make the inverters such th ...
1.5A Negative LDO Offers Fast Transient Response, Low Output
... 1.5A negative low dropout linear regulator featuring fast transient response, low noise, and precision current limit. With its wide input voltage range of -1.8V to -30V and adjustable output voltage from -1.220V to -29.5V, the device’s common emitter NPN power transistor design requires only a singl ...
... 1.5A negative low dropout linear regulator featuring fast transient response, low noise, and precision current limit. With its wide input voltage range of -1.8V to -30V and adjustable output voltage from -1.220V to -29.5V, the device’s common emitter NPN power transistor design requires only a singl ...
Maximum Output Power of Class E Amplifier for a Given Transistor
... 2. Amplifier with sub class E operation Figure 1 indicates a circuit diagram of the class E amplifier analyzed in this paper. The class E amplifier consists of choke-coil LRFC which supplies the electric power from direct current supply voltage source VDD, shunt capacitor C1 which are connected in p ...
... 2. Amplifier with sub class E operation Figure 1 indicates a circuit diagram of the class E amplifier analyzed in this paper. The class E amplifier consists of choke-coil LRFC which supplies the electric power from direct current supply voltage source VDD, shunt capacitor C1 which are connected in p ...
Photologic - OPTEK Technology
... OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 ...
... OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 ...
Design of a Clap Activated Switch
... The 555 timer is a very versatile 8-pin, which can be configured with a few external components and to build many circuits involving timing. The NE 555, used in this design is a popular version that is suitable in most cases where a 555 timer is needed. It is a dual-In -line (DIL) package. The 555 t ...
... The 555 timer is a very versatile 8-pin, which can be configured with a few external components and to build many circuits involving timing. The NE 555, used in this design is a popular version that is suitable in most cases where a 555 timer is needed. It is a dual-In -line (DIL) package. The 555 t ...
display
... The output board's shift registers will have a very slow (~0.5Hz) clock signal attached to their clock inputs, and one or two bits of the signal input will be high (these will be done with a DC power supply and signal generator). The "high voltage" input (which in the full project will be 120Vrms) w ...
... The output board's shift registers will have a very slow (~0.5Hz) clock signal attached to their clock inputs, and one or two bits of the signal input will be high (these will be done with a DC power supply and signal generator). The "high voltage" input (which in the full project will be 120Vrms) w ...
SMPS: ISOLATED FORWARD CONVERTER "Non
... problem: x suggests the need for a dc-dc transformer!!!!! solution: concept: ...
... problem: x suggests the need for a dc-dc transformer!!!!! solution: concept: ...
AD8002
... loads with excellent differential gain and phase performance on only 50 mW of power per amplifier. The AD8002 is a current feedback amplifier and features gain flatness of 0.1 dB to 60 MHz while offering differential gain and phase error of 0.01% and 0.02°. This makes the AD8002 ideal for profession ...
... loads with excellent differential gain and phase performance on only 50 mW of power per amplifier. The AD8002 is a current feedback amplifier and features gain flatness of 0.1 dB to 60 MHz while offering differential gain and phase error of 0.01% and 0.02°. This makes the AD8002 ideal for profession ...
Resume PDF
... n Low-noise analog circuit design for EQ, crossover, and VCA compressor n VRA3200 & VRA2200 Power Amplifiers – High-power modular class AB amplifier architecture for 2 X 200W and 3 X 200W home theater amplification: n Company-first 200W class-AB power amp n Extremely low-distortion, low-noise di ...
... n Low-noise analog circuit design for EQ, crossover, and VCA compressor n VRA3200 & VRA2200 Power Amplifiers – High-power modular class AB amplifier architecture for 2 X 200W and 3 X 200W home theater amplification: n Company-first 200W class-AB power amp n Extremely low-distortion, low-noise di ...
Output Characteristics (DC)
... voltage being increased to the calibrated value. Regulated auxiliary outputs will also reduce the output voltage / current in accordance to their overloading. The characteristic may vary according to the circuit employed. ...
... voltage being increased to the calibrated value. Regulated auxiliary outputs will also reduce the output voltage / current in accordance to their overloading. The characteristic may vary according to the circuit employed. ...
CN-0022 利用AD5546/AD5556 DAC实现精密、单极性、反相转换 .
... (Continued from first page) "Circuits from the Lab" are intended only for use with Analog Devices products and are the intellectual property of Analog Devices or its licensors. While you may use the "Circuits from the Lab" in the design of your product, no other license is granted by implication or ...
... (Continued from first page) "Circuits from the Lab" are intended only for use with Analog Devices products and are the intellectual property of Analog Devices or its licensors. While you may use the "Circuits from the Lab" in the design of your product, no other license is granted by implication or ...
Tube sound
![](https://commons.wikimedia.org/wiki/Special:FilePath/Tubes.jpg?width=300)
Tube sound (or valve sound) is the characteristic sound associated with a vacuum tube-based audio amplifier. After introduction of solid state amplifiers, tube sound appeared as the logical complement of transistor sound, which had some negative connotations due to crossover distortion of early transistor amplifiers. The audible significance of tube amplification on audio signals is a subject of continuing debate among audio enthusiasts.Many electric guitar, electric bass, and keyboard players in several genres also prefer the sound of tube instrument amplifiers or preamplifiers.