capacitance test bridge
... 1.1 PURPOSE. The Type 1611-B Capacitance Test Bridge (Figure 1) is a direct-reading capacitance bridge designed for wide-range capacitance and dissipation-factor measurements at 60 and 120 cps. (At 120 cps, an external generator is required; the Type 1214-D is recommended.) Measurements can be made ...
... 1.1 PURPOSE. The Type 1611-B Capacitance Test Bridge (Figure 1) is a direct-reading capacitance bridge designed for wide-range capacitance and dissipation-factor measurements at 60 and 120 cps. (At 120 cps, an external generator is required; the Type 1214-D is recommended.) Measurements can be made ...
2. Capacitors - Wikimedia Commons
... unit of capacitance was the jar, equivalent to about 1.11 nanofarads.[8] Leyden jars or more powerful devices employing flat glass plates alternating with foil conductors were used exclusively up until about 1900, when the invention of wireless (radio) created a demand for standard capacitors, and th ...
... unit of capacitance was the jar, equivalent to about 1.11 nanofarads.[8] Leyden jars or more powerful devices employing flat glass plates alternating with foil conductors were used exclusively up until about 1900, when the invention of wireless (radio) created a demand for standard capacitors, and th ...
Chapter 2 - Breakdown of Liquid and Solid Insulation
... Thus when the field is increased, the thickness of the material decreases. At the field when d < 0.6 do, any further increase in the field would cause the mechanical collapse of the dielectric. The apparent stress (V/do) at which this collapse occurs is thus given by the equation ...
... Thus when the field is increased, the thickness of the material decreases. At the field when d < 0.6 do, any further increase in the field would cause the mechanical collapse of the dielectric. The apparent stress (V/do) at which this collapse occurs is thus given by the equation ...
AP6502 Description Pin Assignments
... the 340kHz oscillator 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 cur ...
... the 340kHz oscillator 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 cur ...
User Manual - Far West Technology, Inc.
... The microprocessor takes two actions. The first is to generate a charge pulse to offset the input current. It uses the information from the first comparator, U1:A for this. When the output of the electrometer goes below ground U1:A goes from high to low and the microprocessor generates a charge puls ...
... The microprocessor takes two actions. The first is to generate a charge pulse to offset the input current. It uses the information from the first comparator, U1:A for this. When the output of the electrometer goes below ground U1:A goes from high to low and the microprocessor generates a charge puls ...
Lecture-7 - WordPress.com
... The rectifier with a filter capacitor- Peak Rectifier • Assume, diode to be ideal. For an sine input, the capacitor charges to the peak of the input, Vp. • Then, diode operates in cut off mode and capacitor discharges through the load R. • The capacitor discharge will continue for almost the entire ...
... The rectifier with a filter capacitor- Peak Rectifier • Assume, diode to be ideal. For an sine input, the capacitor charges to the peak of the input, Vp. • Then, diode operates in cut off mode and capacitor discharges through the load R. • The capacitor discharge will continue for almost the entire ...
MAX221 +5V, 1µA, Single RS-232 Transceiver with AutoShutdown General Description
... THE AUTOSHUTDOWN LOGIC AND APPEARS AS AN OUTPUT. ...
... THE AUTOSHUTDOWN LOGIC AND APPEARS AS AN OUTPUT. ...
PPC2011-KlysModESS
... A passive LC resonant bouncer system compensates for the voltage droop, both due to the main capacitor bank discharge over time and to the PT internal voltage droop across the primary winding. A damping circuit is used to demagnetize the transformer at the end of each pulse, by dissipating the magne ...
... A passive LC resonant bouncer system compensates for the voltage droop, both due to the main capacitor bank discharge over time and to the PT internal voltage droop across the primary winding. A damping circuit is used to demagnetize the transformer at the end of each pulse, by dissipating the magne ...
Evaluates: MAX1955/MAX1956 MAX1955 Evaluation Kit General Description Features
... and tested circuit board for evaluating the MAX1955 dualPWM step-down controller. The board comes with the MAX1955 installed, but can also be used to evaluate the MAX1956. The EV kit is configured to operate from a 2.25V to 5.5V input supply range and provides 1.8V and 1.5V outputs capable of delive ...
... and tested circuit board for evaluating the MAX1955 dualPWM step-down controller. The board comes with the MAX1955 installed, but can also be used to evaluate the MAX1956. The EV kit is configured to operate from a 2.25V to 5.5V input supply range and provides 1.8V and 1.5V outputs capable of delive ...
LM2825 Integrated Power Supply 1A DC
... of 12V, an aluminum electrolytic capacitor (Panasonic HFQ series or Nichicon PL series or equivalent) with a voltage rating greater than 15V (1.25 × VIN) would be needed. Solid tantalum input capacitors should only be used where the input source is impedance current limited. High dV/dt applied at th ...
... of 12V, an aluminum electrolytic capacitor (Panasonic HFQ series or Nichicon PL series or equivalent) with a voltage rating greater than 15V (1.25 × VIN) would be needed. Solid tantalum input capacitors should only be used where the input source is impedance current limited. High dV/dt applied at th ...
NCP120 - 150mA, Very Low Dropout Bias Rail CMOS Voltage
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
MAX8650 General Description Features
... The MAX8650 synchronous PWM buck controller operates from a 4.5V to 28V input and generates an adjustable 0.7V to 5.5V output voltage at loads up to 25A. The MAX8650 uses a peak current-mode control architecture with an adjustable (200kHz to 1.2MHz) constant switching frequency and is externally syn ...
... The MAX8650 synchronous PWM buck controller operates from a 4.5V to 28V input and generates an adjustable 0.7V to 5.5V output voltage at loads up to 25A. The MAX8650 uses a peak current-mode control architecture with an adjustable (200kHz to 1.2MHz) constant switching frequency and is externally syn ...
PIC - Peripheral Interface Controllers
... Our PIC of choice for this syllabus is the PIC16F88 also known as the PICAXE 18X. Why the difference in name? Well, if we were working at industrial standards we would probably choose the PIC16F88 but programming it is not at all easy, requiring knowledge of a low level language such as assembler. T ...
... Our PIC of choice for this syllabus is the PIC16F88 also known as the PICAXE 18X. Why the difference in name? Well, if we were working at industrial standards we would probably choose the PIC16F88 but programming it is not at all easy, requiring knowledge of a low level language such as assembler. T ...
MAX786 Dual-Output Power-Supply Controller for Notebook Computers __________________General Description
... PWM architecture that allows for output filter capacitors as small as 30µF per ampere of load. Line- and loadtransient responses are terrific, with a high 60kHz unitygain crossover frequency allowing output transients to be corrected within four or five clock cycles. Low system cost is achieved thro ...
... PWM architecture that allows for output filter capacitors as small as 30µF per ampere of load. Line- and loadtransient responses are terrific, with a high 60kHz unitygain crossover frequency allowing output transients to be corrected within four or five clock cycles. Low system cost is achieved thro ...
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.