Switching diode characteristics with amplifier
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Switching diodes
Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Ko and Forest E. Brammer Published Physics IRE Transactions on Electron Devices The reverse recovery characteristic of a semiconductor diode depends not only on the crystal properties and the physical dimensions of the diode but also on the circuit in which it is used.
The effects of the circuit parameters, namely, forward current, reverse voltage and reverse loop impedance, on the diode recovery characteristics were studied experimentally on germanium and silicon junction diodes.
The results are given in curves which illustrate the relationships between these circuit… Expand. View on IEEE. Save to Library Save. Create Alert Alert. Share This Paper. Citation Type. Has PDF. Publication Type. More Filters. The reverse transient behavior of semiconductor junction diodes. The reverse transient behavior of junction diodes after a rectangular pulse of forward current is analyzed and the results verified experimentally.
Based on the simplified planar diode model and the … Expand. Clocked step-recovery diode SRD circuits are investigated for regenerating and multiplexing PCM-type signals in the range from 0. One regenerator type is particularly … Expand.
View 2 excerpts, cites background. Reverse transient characteristics of a P-N junction diode due to minority carrier storage. Analysis of the transient switching characteristics of a p-n junction diode is considered a boundary value problem; solution of this problem yields mathematical equations applicable to the design of … Expand.
Reverse recovery time measurements of epitaxial silicon p-n junctions at low temperatures. Abstract Reverse recovery times of epitaxial Si p-n junctions with approximately linear impurity gradient were measured as a function of current and breakdown voltage between room temperature and … Expand.
A large-signal analysis is presented for the carrierstorage frequency divider in which the diode is assumed to be an ideal sequentially operated switch which closes when the voltage across it changes … Expand. Simulating parametric amplifiers. In this paper, the problems of producing a general simulator model of a parametric amplifier are discussed. This model is to be simple, accurate, and applicable to many forms of parametric … Expand.
Cascaded Clock-Synchronized Diode Amplifier. The time in which a junction diode may be switched from forward to reverse conduction is of great importance in computing networks. By considering the behavior of the minority carriers in a diode In … Expand. On the Transient Behavior of Semiconductor Rectifiers.
Measurements of the barrier emf have been made with … Expand. Following the application of a current pulse to a semiconductor diode, a transient voltage appears which is caused by deviations in carrier concentrations near the barrier. The high-frequency … Expand. Recovery time measurements on point-contact germanium diodes. The use of point-contact diodes in computer circuitry has shown that diode transient response is important in circuitry employing fast waveforms.
Diodes which are pulsed in the back direction from a … Expand. Diode amplifiers. The diode amplifier is supplied with power from an ac source whose frequency is the … Expand.
The behavior is studied as a … Expand. The characteristics of junction devices are influenced to a considerable degree by the lifetime of the minority carriers. Accordingly, methods for the measurement of this quantity are of considerable … Expand.
Several recovery time effects in germanium point contact diodes are described and a hypothesis is proposed to explain the observed effects.
This hypothesis postulates the presence of traps in the … Expand. Charge Storage in Junction Diodes. A calculation is made which relates the physical properties of a junction diode to the troublesome spike current arising from hole storage in the germanium.
This spike current results when the diode … Expand. Recovery Currents in Germanium p — n Junction Diodes.
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PCB Design & Analysis
Latest Articles in "Industry News". A diode may be the simplest of all semiconductor components, however, it performs many critical functions, including the control of the flow of an electrical current. A diode is a device that allows current to flow in one direction but not the other. This is achieved through a built-in electric field. Although the earliest diodes consisted of red-hot wires running through the middle of a metal cylinder which itself was located inside of a glass vacuum tube, modern diodes are semiconductor diodes. As the name suggests, these are made from semiconductor materials , primarily doped silicon. I—V current vs. Despite being nothing more than a simple two-pin semiconductor devices, diodes are vital to modern electronics.
Electronic Circuits - Diode as a Switch
Owner name : U. Effective date : A multiplexer circuit is disclosed for switching a selected one of a plurality of current inputs carried by respective input lines 2; to a common output. The circuit comprises, for each input line, a diode clamp 5; and isolation means 10; provided between each input line and the common terminal The diode clamp 5; is operable in a first mode in which voltages are applied to the clamp terminals such that the diodes 8,9;, of the diode clamp are forward biased and hold the input line 2; at a first voltage which prevents the passage of current from the input line to the common output, and a second mode in which the voltages are applied to the clamp terminals such that the diodes of the diode clamp are reverse biased and the passage of the current from the input line to the common output is allowed.
Diodes and Rectifiers
Diode Waveforms and Characteristics Fast rectifier diodes use some variation of a p-i-n structure. A frequency multiplier which employs a step recovery diode operated in a double pulse mode for each period of the cycle of the input frequency signal provides efficient and high order harmonic generation. Low decay time diodes also called step-recovery diode — in this kind of diodes, storage of charge has a crucial impact on the diode operating speed. Switching performance of single dies has been simulated and experimentally confirmed. The pulse generator comprises three parts, a step recovery diode, a field-effect transistor and a Schottky diode, used to eliminate the positive and negative ringing of pulse. SRDs are also known as snap-off, memory varactor charge storage diodes.
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Diode Characteristics
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RELATED VIDEO: Power Diode basics, structure, types, characteristics \u0026 working in Power by Engineering FundaThe precision rectifier is a configuration obtained with an operational amplifier in order to have a circuit behave like an ideal diode and rectifier. With the help of a precision rectifier the high-precision signal processing can be done very easily. The op-amp-based precision rectifier should not be confused with the power MOSFET-based active rectification ideal diode. When the input voltage is negative, there is a negative voltage on the diode, so it works like an open circuit, no current flows through the load, and the output voltage is zero. When the input is positive, it is amplified by the operational amplifier, which switches the diode on. Current flows through the load and, because of the feedback , the output voltage is equal to the input voltage.
Diodes and Rectifiers. Please log in to show your saved searches. Engineers looking to improve the efficiency of their mid-range SMPS designs benefit from ST's extensive experience in the semiconductor manufacturing industry and as a leading technology innovator. Depending on the targeted application and its voltage, developers can choose from a wide range of devices to ensure the best compromise in terms of forward voltage drop V F and leakage current I R as well as other characteristics. Computer-aided decision-making functions and a powerful search engine enable SMPS designers and component engineers to rapidly make a clear decision about which field-effect rectifier or Schottky diode is best suited for their application. Available in both English and Chinese, an intuitive online help helps you get started and includes concrete examples and snapshots.
Although they are a simple device, diodes do have a number of traits to consider. These traits are often application dependent. Some applications include: rectifiers, signal ORing, transistor turn off, freewheeling inductors and motors and of course specialized functions such as LEDs and voltage references. The diode, like its triangular symbol, passes current in one direction while blocking current as well as voltage in the opposite direction.
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