Most useful circuits are more complicated than the simple circuits we
... with a resistance that is the sum of the two resistors. We could draw this circuit as a simple circuit, replacing R1 and R2 by one resistor with resistance Req = R1 + R2, as shown in Figure 22.4b. We call the single resistor the equivalent resistance. This principle can be extended to any number of ...
... with a resistance that is the sum of the two resistors. We could draw this circuit as a simple circuit, replacing R1 and R2 by one resistor with resistance Req = R1 + R2, as shown in Figure 22.4b. We call the single resistor the equivalent resistance. This principle can be extended to any number of ...
CAT32 - CMOS White LED Driver
... 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 ...
High Resistance Measurements
... to electrostatic interference. Care must be taken to avoid touching the body of the component so it does not become contaminated with body oils. These measurements are often dependent on the applied voltage and/or time. For example, high megohm resistors often exhibit a change in resistance with a c ...
... to electrostatic interference. Care must be taken to avoid touching the body of the component so it does not become contaminated with body oils. These measurements are often dependent on the applied voltage and/or time. For example, high megohm resistors often exhibit a change in resistance with a c ...
CAT4003B - Constant Current Programmable LED Driver
... signal, as shown on Figure 1. On each successive pulse rising edge, the LED current is decreased by about 3.2% (1/31st of the full scale value). After 30 pulses, the LED current is 3.2% of the full scale current. On the 31st pulse, the current drops to zero, and then goes back to full scale on the ...
... signal, as shown on Figure 1. On each successive pulse rising edge, the LED current is decreased by about 3.2% (1/31st of the full scale value). After 30 pulses, the LED current is 3.2% of the full scale current. On the 31st pulse, the current drops to zero, and then goes back to full scale on the ...
Power MOSFET Basics: Understanding Gate Charge and Using it to
... and therefore the majority of drive current flows into Cgs rather than into Cgd. This current, through Cgd and Cds, depends on the time derivative of the product of the capacitance and its voltage. The gate charge can therefore be assumed to be QGS. The next part of the waveform is the Miller Platea ...
... and therefore the majority of drive current flows into Cgs rather than into Cgd. This current, through Cgd and Cds, depends on the time derivative of the product of the capacitance and its voltage. The gate charge can therefore be assumed to be QGS. The next part of the waveform is the Miller Platea ...
Tech Tutorial: Linear regulators vs
... regulators continue to survive and even thrive because they're cheap and easy to use. In this article I'll highlight the complexity of LDO regulators, look at what's new in the market (yes, there are some advances), and examine the move toward switching regulators as automotive power requirements co ...
... regulators continue to survive and even thrive because they're cheap and easy to use. In this article I'll highlight the complexity of LDO regulators, look at what's new in the market (yes, there are some advances), and examine the move toward switching regulators as automotive power requirements co ...
Simulation Lab
... 2. Use a voltmeter (check the box next to voltmeter on the right side of the display) to measure the voltage across the resistor. Use the non-contact ammeter to measure the current in the wires. Use Ohm’s Law (V=IR) to Calculate the resistance of the resistor. 3. Right click on the resistor and chec ...
... 2. Use a voltmeter (check the box next to voltmeter on the right side of the display) to measure the voltage across the resistor. Use the non-contact ammeter to measure the current in the wires. Use Ohm’s Law (V=IR) to Calculate the resistance of the resistor. 3. Right click on the resistor and chec ...
Spin dependent tunneling devices fabricated for magnetic random
... magnetoresistance was 25.6%, the switching field was 12 Oe, the junction resistance-area product was 116 k⍀ m2 , and the pinning field was 150 Oe. There were two legs of SDT resistors in a latch cell, with each leg consisting of at least one pair of junctions. The basic latching function of the de ...
... magnetoresistance was 25.6%, the switching field was 12 Oe, the junction resistance-area product was 116 k⍀ m2 , and the pinning field was 150 Oe. There were two legs of SDT resistors in a latch cell, with each leg consisting of at least one pair of junctions. The basic latching function of the de ...
small-signal hybrid-π equivalent circuit of bipolar
... • Figure above show current-voltage characteristic for constant values of B-E voltage. • The curves are linear with respect to C-E voltage in forward-active mode. • The slope is due to base-width modulation effect Early Effect. • When the curves extrapolated at zero current, they meet a point on – ...
... • Figure above show current-voltage characteristic for constant values of B-E voltage. • The curves are linear with respect to C-E voltage in forward-active mode. • The slope is due to base-width modulation effect Early Effect. • When the curves extrapolated at zero current, they meet a point on – ...
Single-phase PWM controller with light
... The L6739 device implements a soft-start to smoothly charge the output filter avoiding high inrush currents to be required to the input power supply. During this phase, the device increases the internal reference from zero up to 0.8 V in closed loop regulation. The softstart is implemented only when ...
... The L6739 device implements a soft-start to smoothly charge the output filter avoiding high inrush currents to be required to the input power supply. During this phase, the device increases the internal reference from zero up to 0.8 V in closed loop regulation. The softstart is implemented only when ...
Analysis and Design of Switched Capacitor
... performance, and is generally much higher than the output impedance of a converter that uses inductance to store energy. Several methods are available for output voltage control. The traditional methods given in [2]-[3] use duty cycle control, which effectively increases the converter's equivalent r ...
... performance, and is generally much higher than the output impedance of a converter that uses inductance to store energy. Several methods are available for output voltage control. The traditional methods given in [2]-[3] use duty cycle control, which effectively increases the converter's equivalent r ...
Future developments in the IEE Wiring Regulations
... IEE Wiring Matters is a quarterly publication from the Institution of Engineering and Technology (IET). The IET is not as a body responsible for the opinions expressed. ©2009: The Institution of Engineering and Technology. All rights reserved. No part of this publication may be reproduced, stored in ...
... IEE Wiring Matters is a quarterly publication from the Institution of Engineering and Technology (IET). The IET is not as a body responsible for the opinions expressed. ©2009: The Institution of Engineering and Technology. All rights reserved. No part of this publication may be reproduced, stored in ...
Memristor
The memristor (/ˈmɛmrɨstər/; a portmanteau of memory resistor) was a term coined in 1971 by circuit theorist Leon Chua as a missing non-linear passive two-terminal electrical component relating electric charge and magnetic flux linkage. The operation of RRAM devices was recently connected to the memristor concept According to the characterizing mathematical relations, the memristor would hypothetically operate in the following way: The memristor's electrical resistance is not constant but depends on the history of current that had previously flowed through the device, i.e., its present resistance depends on how much electric charge has flowed in what direction through it in the past. The device remembers its history - the so-called non-volatility property: When the electric power supply is turned off, the memristor remembers its most recent resistance until it is turned on again.Leon Chua has more recently argued that the definition could be generalized to cover all forms of two-terminal non-volatile memory devices based on resistance switching effects although some experimental evidence contradicts this claim, since a non-passive nanobattery effect is observable in resistance switching memory. Chua also argued that the memristor is the oldest known circuit element, with its effects predating the resistor, capacitor and inductor.In 2008, a team at HP Labs claimed to have found Chua's missing memristor based on an analysis of a thin film of titanium dioxide; the HP result was published in Nature. The memristor is currently under development by various teams including Hewlett-Packard, SK Hynix and HRL Laboratories.These devices are intended for applications in nanoelectronic memories, computer logic and neuromorphic/neuromemristive computer architectures. In October 2011, the HP team announced the commercial availability of memristor technology within 18 months, as a replacement for Flash, SSD, DRAM and SRAM. Commercial availability of new memory was more recently estimated as 2018. In March 2012, a team of researchers from HRL Laboratories and the University of Michigan announced the first functioning memristor array built on a CMOS chip.