LM138/LM338 5-Amp Adjustable Regulators
... adjustment or output capacitors are used but the above values will eliminate the possiblity of problems. The adjustment terminal can be bypassed to ground on the LM138 to improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased. With a 1 ...
... adjustment or output capacitors are used but the above values will eliminate the possiblity of problems. The adjustment terminal can be bypassed to ground on the LM138 to improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased. With a 1 ...
AN-9744 Smart LED Lamp Driver IC with PFC Function
... The FL7701 is a PWM peak current controller for a buck converter topology operating in Continuous Conduction Mode (CCM) with an intelligent PFC function using a digital control algorithm. The FL7701 has an internal selfbiasing circuit that is a current source using a high-voltage switching device. W ...
... The FL7701 is a PWM peak current controller for a buck converter topology operating in Continuous Conduction Mode (CCM) with an intelligent PFC function using a digital control algorithm. The FL7701 has an internal selfbiasing circuit that is a current source using a high-voltage switching device. W ...
3.3V 5V ±12V housekeeping IC
... The Under Voltage Protection Circuit is made of comparators with internal voltage thresholds which do not require any external components for proper operation. The outputs of these comparators are ORed, and blanked by an internal delay circuitry (Power Up Blanking - Tuv) which can be adjusted with a ...
... The Under Voltage Protection Circuit is made of comparators with internal voltage thresholds which do not require any external components for proper operation. The outputs of these comparators are ORed, and blanked by an internal delay circuitry (Power Up Blanking - Tuv) which can be adjusted with a ...
Oscilloscope Probes:Theory and Practice
... source resistance (the Thevenin resistance of the circuit) is much less than 1MΩ. For example, to obtain 1% accuracy, the source resistance must not exceed 10kΩ. Now consider the situation at a high frequency. At 2MHz, a 20pF capacitor has an impedance of approximately 4000Ω. Figure 4: Coaxial Test ...
... source resistance (the Thevenin resistance of the circuit) is much less than 1MΩ. For example, to obtain 1% accuracy, the source resistance must not exceed 10kΩ. Now consider the situation at a high frequency. At 2MHz, a 20pF capacitor has an impedance of approximately 4000Ω. Figure 4: Coaxial Test ...
Selection of Capacitance for Compensated Self Excited Induction Generator Using Meta-Heuristic Approach
... load. This is a costly and complicated solution. However, if the terminal voltage is allowed to vary within a narrow range, an attractive, in-expensive and simple approach is to use stepped switched capacitors with the possibility of switching them on/off with the loads [3-5]. The principle of self- ...
... load. This is a costly and complicated solution. However, if the terminal voltage is allowed to vary within a narrow range, an attractive, in-expensive and simple approach is to use stepped switched capacitors with the possibility of switching them on/off with the loads [3-5]. The principle of self- ...
High Voltage Nanosecond Pulse Measurement Techniques
... Standard grounding practice calls for a single star point ground, and therefore it may be tempting to float the oscilloscope using an isolation transformer or battery power supply. However, in order for this to be effective on the relevant timescales, the stray capacitance of the isolation transform ...
... Standard grounding practice calls for a single star point ground, and therefore it may be tempting to float the oscilloscope using an isolation transformer or battery power supply. However, in order for this to be effective on the relevant timescales, the stray capacitance of the isolation transform ...
Power Module Design for an Ultra Efficient Three-Level Abstract :
... new components such as SiC to take the lead. In parallel, after years of dormancy, old but very innovative ideas such as the mixed-voltage NPC topology have been rediscovered and put to good use in many solar inverter applications. Surprisingly, all these efforts have focused on the power range up t ...
... new components such as SiC to take the lead. In parallel, after years of dormancy, old but very innovative ideas such as the mixed-voltage NPC topology have been rediscovered and put to good use in many solar inverter applications. Surprisingly, all these efforts have focused on the power range up t ...
BH12PB1WHFV
... The power supply and ground lines must be as short and thick as possible to reduce line impedance. Fluctuating voltage on the power ground line may damage the device. 6. Overcurrent protection circuit The IC incorporates a built-in overcurrent protection circuit that operates according to the output ...
... The power supply and ground lines must be as short and thick as possible to reduce line impedance. Fluctuating voltage on the power ground line may damage the device. 6. Overcurrent protection circuit The IC incorporates a built-in overcurrent protection circuit that operates according to the output ...
TL783 - Texas Instruments
... The TL783 was designed to minimize the input current at ADJ and maintain consistency over line and load variations, thereby minimizing the associated (R2) error term. To maintain II(ADJ) at a low level, all quiescent operating current is returned to the output terminal. This quiescent current must b ...
... The TL783 was designed to minimize the input current at ADJ and maintain consistency over line and load variations, thereby minimizing the associated (R2) error term. To maintain II(ADJ) at a low level, all quiescent operating current is returned to the output terminal. This quiescent current must b ...
Study of Inductive-Capacitive Series Circuits Using
... configuration, can be studied with this modern method which involves the use of virtual medium. Three elementary circuits are presented here, but the study modality can be extended to other circuits configuration as well. If we consider an electric circuit, a first problem is that of writing the cha ...
... configuration, can be studied with this modern method which involves the use of virtual medium. Three elementary circuits are presented here, but the study modality can be extended to other circuits configuration as well. If we consider an electric circuit, a first problem is that of writing the cha ...
AP6503 Description Pin Assignments
... clock signal sets the RS Flip-Flop. Its output turns on HS MOSFET. The current sense amplifier is reset for every switching cycle. When the HS MOSFET is on, inductor current starts to increase. The Current Sense Amplifier senses and amplifies the inductor current. Since the current mode control is s ...
... clock signal sets the RS Flip-Flop. Its output turns on HS MOSFET. The current sense amplifier is reset for every switching cycle. When the HS MOSFET is on, inductor current starts to increase. The Current Sense Amplifier senses and amplifies the inductor current. Since the current mode control is s ...
Not Recommended for New Designs
... In DCM, ringing occurs at VSW in the latter part of the switch off-cycle. This is due to the inductor resonating with the parallel capacitance of the catch diode and the V SW node. This ringing is harmless and does not appear at the output. Furthermore, attempts to damp this ringing by adding circui ...
... In DCM, ringing occurs at VSW in the latter part of the switch off-cycle. This is due to the inductor resonating with the parallel capacitance of the catch diode and the V SW node. This ringing is harmless and does not appear at the output. Furthermore, attempts to damp this ringing by adding circui ...
Introduction to Scanning Microwave Microscopy
... materials and semiconductor industries. Such mapping, however, usually is not as straightforward as topography imaging because, in many cases, these properties are related to buried structures not directly shown on the surface. It takes innovative approaches to “see through” and meanwhile achieve su ...
... materials and semiconductor industries. Such mapping, however, usually is not as straightforward as topography imaging because, in many cases, these properties are related to buried structures not directly shown on the surface. It takes innovative approaches to “see through” and meanwhile achieve su ...
A Four-Level pi-Type Converter for Low
... the switching frequency of the multilevel converter can be kept low, thus reducing the switching losses and shrinking the heatsink size. On the other hand, if operated at the same switching frequency, the filter size of the multilevel converter can be smaller. Either way will improve the system powe ...
... the switching frequency of the multilevel converter can be kept low, thus reducing the switching losses and shrinking the heatsink size. On the other hand, if operated at the same switching frequency, the filter size of the multilevel converter can be smaller. Either way will improve the system powe ...
MAX16909 Evaluation Kit Evaluates: MAX16909 General Description Features
... 2) Connect the power supply between the EXT_VBAT and nearest GND test points. 3) Connect the 3A electronic load between the OUT and nearest GND test points. 4) Connect the DVM between the OUT and nearest GND test points. 5) Turn on the power supply. 6) Enable the electronic load. 7) Verify tha ...
... 2) Connect the power supply between the EXT_VBAT and nearest GND test points. 3) Connect the 3A electronic load between the OUT and nearest GND test points. 4) Connect the DVM between the OUT and nearest GND test points. 5) Turn on the power supply. 6) Enable the electronic load. 7) Verify tha ...
ICL7652 Advanced LinCMOSTM PRECISION
... The two important factors to consider when selecting external capacitors CXA and CXB are leakage and dielectric absorption. Both factors can cause system degradation that negate the performance advantages realized by using the ICL7652. Degradation from capacitor leakage becomes more apparent with in ...
... The two important factors to consider when selecting external capacitors CXA and CXB are leakage and dielectric absorption. Both factors can cause system degradation that negate the performance advantages realized by using the ICL7652. Degradation from capacitor leakage becomes more apparent with in ...
Capacitor
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A capacitor (originally known as a condenser) is a passive two-terminal electrical component used to store electrical energy temporarily in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors (plates) separated by a dielectric (i.e. an insulator that can store energy by becoming polarized). The conductors can be thin films, foils or sintered beads of metal or conductive electrolyte, etc. The nonconducting dielectric acts to increase the capacitor's charge capacity. A dielectric can be glass, ceramic, plastic film, air, vacuum, paper, mica, oxide layer etc. Capacitors are widely used as parts of electrical circuits in many common electrical devices. Unlike a resistor, an ideal capacitor does not dissipate energy. Instead, a capacitor stores energy in the form of an electrostatic field between its plates.When there is a potential difference across the conductors (e.g., when a capacitor is attached across a battery), an electric field develops across the dielectric, causing positive charge +Q to collect on one plate and negative charge −Q to collect on the other plate. If a battery has been attached to a capacitor for a sufficient amount of time, no current can flow through the capacitor. However, if a time-varying voltage is applied across the leads of the capacitor, a displacement current can flow.An ideal capacitor is characterized by a single constant value, its capacitance. Capacitance is defined as the ratio of the electric charge Q on each conductor to the potential difference V between them. The SI unit of capacitance is the farad (F), which is equal to one coulomb per volt (1 C/V). Typical capacitance values range from about 1 pF (10−12 F) to about 1 mF (10−3 F).The larger the surface area of the ""plates"" (conductors) and the narrower the gap between them, the greater the capacitance is. In practice, the dielectric between the plates passes a small amount of leakage current and also has an electric field strength limit, known as the breakdown voltage. The conductors and leads introduce an undesired inductance and resistance.Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies. In resonant circuits they tune radios to particular frequencies. In electric power transmission systems, they stabilize voltage and power flow.