AX8052F143
... 3. To avoid spurious emission, the crystal or TCXO reference frequency should be chosen so that the RF carrier frequency is not an integer multiple of the crystal or TCXO frequency. 4. The oscillator transconductance is regulated for fastest start−up time during start−up and for lowest power curing ...
... 3. To avoid spurious emission, the crystal or TCXO reference frequency should be chosen so that the RF carrier frequency is not an integer multiple of the crystal or TCXO frequency. 4. The oscillator transconductance is regulated for fastest start−up time during start−up and for lowest power curing ...
Singh2013-StressAnalysis-MEMS.pdf
... dielectric material is used on top of the signal line. The characteristics of the switch are mainly governed by the design of the membrane. To lower the pull-down voltage, meanders are included on the sides of the membrane, which helps to lower the spring constant of the membrane. The membrane is th ...
... dielectric material is used on top of the signal line. The characteristics of the switch are mainly governed by the design of the membrane. To lower the pull-down voltage, meanders are included on the sides of the membrane, which helps to lower the spring constant of the membrane. The membrane is th ...
Double circuit line protection
... Parallel transmission lines have been extensively utilized in modern power systems to enhance the reliability and security for the transmission of electrical energy. The different possible configurations of parallel lines combined with the effect of mutual coupling make their protection a challengin ...
... Parallel transmission lines have been extensively utilized in modern power systems to enhance the reliability and security for the transmission of electrical energy. The different possible configurations of parallel lines combined with the effect of mutual coupling make their protection a challengin ...
DRM039, Single Phase AC Induction Motor Control Reference Design
... load. The switching frequency is fixed at 16 kHz. The r.m.s value of output voltage is proportional to the duty-cycle of the modulation signal (PWM modulation). The first harmonic of the output waveform remains unchanged and is the same as the line voltage. Therefore the circuits are suitable for ap ...
... load. The switching frequency is fixed at 16 kHz. The r.m.s value of output voltage is proportional to the duty-cycle of the modulation signal (PWM modulation). The first harmonic of the output waveform remains unchanged and is the same as the line voltage. Therefore the circuits are suitable for ap ...
BX-1(FI)PRO - Anda Olsen
... the battery. When voltage drops below 12.8V, monitoring circuit senses that battery needs more current to maintain its charge than available in trickle charge phase. The Charger switches to Maintenance Charge phase. ...
... the battery. When voltage drops below 12.8V, monitoring circuit senses that battery needs more current to maintain its charge than available in trickle charge phase. The Charger switches to Maintenance Charge phase. ...
Chapter 6 DC Initialization and Point Analysis
... Performing Initialization and Analysis The first task Star-Hspice performs for .OP, .DC sweep, .AC, and .TRAN analyses is to set the DC operating point values for all nodes and sources. It does this either by calculating all of the values or by applying values specified in .NODESET and .IC statement ...
... Performing Initialization and Analysis The first task Star-Hspice performs for .OP, .DC sweep, .AC, and .TRAN analyses is to set the DC operating point values for all nodes and sources. It does this either by calculating all of the values or by applying values specified in .NODESET and .IC statement ...
Transistor Biasing
... (ii) Minimum proper base-emitter voltage (VBE) at any instant (iii) Minimum proper collector-emitter voltage (VCE) at any instant The conditions (i) and (ii) ensure that base-emitter junction shall remain properly forward biased during all parts of the signal. On the other hand, condition (iii) ensu ...
... (ii) Minimum proper base-emitter voltage (VBE) at any instant (iii) Minimum proper collector-emitter voltage (VCE) at any instant The conditions (i) and (ii) ensure that base-emitter junction shall remain properly forward biased during all parts of the signal. On the other hand, condition (iii) ensu ...
this PDF file
... With the exception of Faraday's and Varley's induction coils, all the above devices had open cores. This arrangement indeed led to greater sparks, due to the greater electromagnetic energy accumulated in the device. At that time, alternating current was still unknown, and hence the described experim ...
... With the exception of Faraday's and Varley's induction coils, all the above devices had open cores. This arrangement indeed led to greater sparks, due to the greater electromagnetic energy accumulated in the device. At that time, alternating current was still unknown, and hence the described experim ...
Section 3 GDT Telecom Applications Protection Examples
... ESD results from the build up of electrical charge, when two non-conductive materials are brought together then separated. The potential between a human body & an object can exceed 35,000 volts. An ESD event can occur to the telecom system or portable devices through human contact and usage of the t ...
... ESD results from the build up of electrical charge, when two non-conductive materials are brought together then separated. The potential between a human body & an object can exceed 35,000 volts. An ESD event can occur to the telecom system or portable devices through human contact and usage of the t ...
Micrologic P fonctionnement
... A periodic signal is a combination of : The original sinusoidal signal at the fundamental frequency Other sinusoidal signals (the harmonics) with frequencies that are whole-number multiples of the fundamental frequency A DC component, where applicable ...
... A periodic signal is a combination of : The original sinusoidal signal at the fundamental frequency Other sinusoidal signals (the harmonics) with frequencies that are whole-number multiples of the fundamental frequency A DC component, where applicable ...
aspect ™ 375 - Lincoln Electric
... or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanical ventilation unless exposure assessments indicate otherwise. In confined spaces or in some circ ...
... or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanical ventilation unless exposure assessments indicate otherwise. In confined spaces or in some circ ...
DESD32VS2SO Features Mechanical Data
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
i `[105
... photodiode region 113 saturates. If the ?rst integration segment (INT1) occurred under a very high illumination condition, the medium voltage pulse Would clear out a portion of the excess electrons, leaving a portion of the photodiode region 113 available for additional electron accumulation. On the ...
... photodiode region 113 saturates. If the ?rst integration segment (INT1) occurred under a very high illumination condition, the medium voltage pulse Would clear out a portion of the excess electrons, leaving a portion of the photodiode region 113 available for additional electron accumulation. On the ...
Model 2220 Analog Input/Output Module IG
... The Model 2220 Analog I/O Module has 8 differential analog inputs, 8 analog outputs, and 8 digital outputs. The analog inputs are bipolar (±10 V) and offer 15-bit resolution. You can program each input to digitally filter the incoming signal, which provides increased stability. In addition, a maximu ...
... The Model 2220 Analog I/O Module has 8 differential analog inputs, 8 analog outputs, and 8 digital outputs. The analog inputs are bipolar (±10 V) and offer 15-bit resolution. You can program each input to digitally filter the incoming signal, which provides increased stability. In addition, a maximu ...
Electronic arrangement for shifting gears in motor vehicles
... resistor R46 does not vary with the voltage output of the battery BA, the potentiometer 27 is connected to a stabi tional to the speed of the vehicle. This alternating current lizing or regulating arrangement, by way of its terminal signal is recti?ed and serves as a control signal for three switchi ...
... resistor R46 does not vary with the voltage output of the battery BA, the potentiometer 27 is connected to a stabi tional to the speed of the vehicle. This alternating current lizing or regulating arrangement, by way of its terminal signal is recti?ed and serves as a control signal for three switchi ...
PCM1794A 数据资料 dataSheet 下载
... optimize analog performance externally. Sampling rates up to 200 kHz are supported. ...
... optimize analog performance externally. Sampling rates up to 200 kHz are supported. ...
Voltage and vibration fluctuations in power transformers
... states. However, the voltage fluctuation in transformer circuit will probably cause transient vibration. In this section, the transient vibration will be discussed for comparison with steady state analysis. The transient process was realised by As the stability of the primary voltage supply can bare ...
... states. However, the voltage fluctuation in transformer circuit will probably cause transient vibration. In this section, the transient vibration will be discussed for comparison with steady state analysis. The transient process was realised by As the stability of the primary voltage supply can bare ...
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.