Working With Optically-Isolated Relays
... and a temperature coefficient of 250 ppm per ºC, RF of 680 W can no longer guarantee safe operation over the entire ...
... and a temperature coefficient of 250 ppm per ºC, RF of 680 W can no longer guarantee safe operation over the entire ...
Homework 6
... The current size of our boards is 170mm x 85mm and 100mm x 75mm which comes out to 34 in2 of area, slightly larger than half of the maximum 60. The size of these boards leaves more than enough room for component placement and signal routing as shown in Appendix B. The only limitations with large par ...
... The current size of our boards is 170mm x 85mm and 100mm x 75mm which comes out to 34 in2 of area, slightly larger than half of the maximum 60. The size of these boards leaves more than enough room for component placement and signal routing as shown in Appendix B. The only limitations with large par ...
expt11
... power source. We will use a small power supply that provides these voltages plus a zero to ±5 V variable DC output. The op-amp will supply a maximum output current of about 25 mA and has typical offset currents of about 20 nA. This implies that resistors in the range 1 k to 100 k should be used. U ...
... power source. We will use a small power supply that provides these voltages plus a zero to ±5 V variable DC output. The op-amp will supply a maximum output current of about 25 mA and has typical offset currents of about 20 nA. This implies that resistors in the range 1 k to 100 k should be used. U ...
CDI circuit description
... As I have stated above, I choose to regulate the inverter’s input voltage. It is a standard ‘series pass’, OP amp based regulator. (IC1B, LM324) It drives Q5 (BC547) and Q6 (TIP31B) in a Darlington configuration. The HV (300 – 330V) output is attenuated by R23 (680k) and R24 (15k) and connected to p ...
... As I have stated above, I choose to regulate the inverter’s input voltage. It is a standard ‘series pass’, OP amp based regulator. (IC1B, LM324) It drives Q5 (BC547) and Q6 (TIP31B) in a Darlington configuration. The HV (300 – 330V) output is attenuated by R23 (680k) and R24 (15k) and connected to p ...
Photoelectric Sensor Terminology
... • A core through which the light is transmitted • A lining that ensures reflection of the light and keeps it within the core • A sheath that protects the actual fiber from the outside environment The light travelling inside the fiber is reflected by the surface separating the core from the lining ...
... • A core through which the light is transmitted • A lining that ensures reflection of the light and keeps it within the core • A sheath that protects the actual fiber from the outside environment The light travelling inside the fiber is reflected by the surface separating the core from the lining ...
02 Linear Supplies
... reference voltage and ground, the output can be varied between 0 and the reference voltage multiplied by the gain of the circuit. There is a practical limit to this circuit, which is determined by the maximum voltage rating of the IC (40 volts). ...
... reference voltage and ground, the output can be varied between 0 and the reference voltage multiplied by the gain of the circuit. There is a practical limit to this circuit, which is determined by the maximum voltage rating of the IC (40 volts). ...
DASH LIGHT DIMMER
... the 97135840 Dash Light Dimmer. Screws (3/16” or 5mm), double sided tape, or Silastic are all acceptable. Orientation is not critical. 2. This module can become quite hot during normal operation and requires ventilation space around it for cooling. Do not mount in areas of high ambient temperature. ...
... the 97135840 Dash Light Dimmer. Screws (3/16” or 5mm), double sided tape, or Silastic are all acceptable. Orientation is not critical. 2. This module can become quite hot during normal operation and requires ventilation space around it for cooling. Do not mount in areas of high ambient temperature. ...
based discontinuous conduction mode (DCM) detection technique
... using integrated high-speed comparators so the need for a costly auxiliary winding to detect zero inductor current is eliminated, as well as providing detection of DCM operation without knowledge of the power converter component values. This paper presents a novel mixed conduction mode (MCM) digital ...
... using integrated high-speed comparators so the need for a costly auxiliary winding to detect zero inductor current is eliminated, as well as providing detection of DCM operation without knowledge of the power converter component values. This paper presents a novel mixed conduction mode (MCM) digital ...
POWER QUALITY
... Interharmonics are defined as frequency components of voltages or currents that are not an integer multiple of the normal system frequency (e.g., 60 or 50 Hz). The main sources of interharmonics are static frequency converters, cycloconverters, induction motors, and arcing devices. Power line carrie ...
... Interharmonics are defined as frequency components of voltages or currents that are not an integer multiple of the normal system frequency (e.g., 60 or 50 Hz). The main sources of interharmonics are static frequency converters, cycloconverters, induction motors, and arcing devices. Power line carrie ...
3U Power Interface Boards (PIB)
... Other features include an auxiliary/disk drive connector (TYCO 350424-1 or equivalent), and a power switch header (AMP/TYCO 640456-2 or equivalent). The sense lines help the power supply better regulate the power at the load end. The function header allows remote or local sense. For optimal power re ...
... Other features include an auxiliary/disk drive connector (TYCO 350424-1 or equivalent), and a power switch header (AMP/TYCO 640456-2 or equivalent). The sense lines help the power supply better regulate the power at the load end. The function header allows remote or local sense. For optimal power re ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... Abstract: The digital comparator using CMOS cells that adopts the parallel prefix tree architecture. This comparator begins from most significant bit towards bit-wise least significant bit when two compared bits are equal. Using circuit optimization technique it reduced by 642 transistors from total ...
... Abstract: The digital comparator using CMOS cells that adopts the parallel prefix tree architecture. This comparator begins from most significant bit towards bit-wise least significant bit when two compared bits are equal. Using circuit optimization technique it reduced by 642 transistors from total ...
LICOMBA Communications Integrated Laboratory Laboratory structure Modules
... sampled. The transmitter sends "1" if the signal has increased since the last time it was sampled, or "0" if it has decreased. Later on the analog signal must be rebuilt at the receiver. This modulation has some drawbacks depending on various parameters, for example the variation slope of the analog ...
... sampled. The transmitter sends "1" if the signal has increased since the last time it was sampled, or "0" if it has decreased. Later on the analog signal must be rebuilt at the receiver. This modulation has some drawbacks depending on various parameters, for example the variation slope of the analog ...
Underclocking: Monarch Manual Clock and Voltage Setting
... set the exact Voltage on the card, the same cannot be done regarding Frequency, as the chips main oscillator is a Ring oscillator. Hence for Frequency, indexes are used, and it is known that a lower index is slower than a higher index. It must be noted that a unit, once leaves the factory, is alread ...
... set the exact Voltage on the card, the same cannot be done regarding Frequency, as the chips main oscillator is a Ring oscillator. Hence for Frequency, indexes are used, and it is known that a lower index is slower than a higher index. It must be noted that a unit, once leaves the factory, is alread ...
DS14C232 Low Power +5V Powered TIA/EIA
... Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of ‘‘Electrical Characteristics’’ specify conditions for device operation. Note 2: Current int ...
... Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of ‘‘Electrical Characteristics’’ specify conditions for device operation. Note 2: Current int ...
MAX1953/MAX1954/MAX1957 Low-Cost, High-Frequency, Current-Mode PWM Buck Controller General Description
... inductor releases the stored energy as the current ramps down, providing current to the output. The output capacitor stores charge when the inductor current exceeds the required load current and discharges when the inductor current is lower, smoothing the voltage across the load. Under overload cond ...
... inductor releases the stored energy as the current ramps down, providing current to the output. The output capacitor stores charge when the inductor current exceeds the required load current and discharges when the inductor current is lower, smoothing the voltage across the load. Under overload cond ...
PDF/186 kB - Bachmann electronic GmbH
... fast measuring of all relevant values for threephase electrical networks. It also provides a number of monitoring functions for generator and grid protection. Up to two circuit-breakers/trip circuits are triggered by the module directly via relay outputs. The continuous monitoring of grid harmonics ...
... fast measuring of all relevant values for threephase electrical networks. It also provides a number of monitoring functions for generator and grid protection. Up to two circuit-breakers/trip circuits are triggered by the module directly via relay outputs. The continuous monitoring of grid harmonics ...
Introduction, Features and Applications
... Introduction, Features and Applications Introduction The KL-8078 are high performance microstepping drivers based on one of the most advanced technologies in the world today. They are suitable for driving 2-phase and 4-phase hybrid stepping motors. By using advanced bipolar constant-current chopping ...
... Introduction, Features and Applications Introduction The KL-8078 are high performance microstepping drivers based on one of the most advanced technologies in the world today. They are suitable for driving 2-phase and 4-phase hybrid stepping motors. By using advanced bipolar constant-current chopping ...
ROMANSO ELECTRONICS CO., LTD NAME: DMX Controller
... DMX controller adopts the advanced micro-control unit,it is used for controlling a variety of lamp whose source of light is LED. For instance, point source of light,flexible light strip, wall washer lamp, glass curtain wall light and so on; It has many advantages such as easy connection and simplici ...
... DMX controller adopts the advanced micro-control unit,it is used for controlling a variety of lamp whose source of light is LED. For instance, point source of light,flexible light strip, wall washer lamp, glass curtain wall light and so on; It has many advantages such as easy connection and simplici ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.