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A high precision, low cost, single supply ADC for positive and
A high precision, low cost, single supply ADC for positive and

... The coefficients Koffset and Kgain can be calculated by measuring Tm for two known input values. These factors can also be compensated by software calibration techniques (like using look-up tables or storing some known values). In the present example the first method is used to calculate these coeff ...
AN#51
AN#51

IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)

... in a large area of system can lead to the case of unacceptable low voltage condition in the network, if no preventive action is committed. Occurrence of disturbance or load increasing leads to excessive demand of reactive power. Therefore system will show voltage instability. If additional sources p ...
LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS
LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS

... (500 µV). These advantages, in combination with good common-mode rejection and supply voltage rejection, make these devices a good choice for new state-of-the-art designs as well as for upgrading existing designs. In general, many features associated with bipolar technology are available in LinCMOS ...
Computed Envelope Linearity of Several FM Broadcast Antenna
Computed Envelope Linearity of Several FM Broadcast Antenna

... “The total gain of the transmission signal path as verified at the antenna output shall be flat to within +/- 0.5 dB for all frequencies between (Fc – 200 kHz) to (Fc +200 kHz), where Fc is the RF channel frequency.” “ The differential group delay variation of the entire transmission signal path (ex ...
TEMPUS ENERGY: VOLTAGE DIPS 1: Introduction When
TEMPUS ENERGY: VOLTAGE DIPS 1: Introduction When

SN751701 数据资料 dataSheet 下载
SN751701 数据资料 dataSheet 下载

... Supply voltage range, VCC + (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.4 V to 18 V Supply voltage range, VCC – (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 V to –18 V Input voltag ...
VCA810 数据资料 dataSheet 下载
VCA810 数据资料 dataSheet 下载

... Operating from ±5V supplies, the gain control voltage for the VCA810 will adjust the gain from –40dB at 0V input to +40dB at –2V input. Increasing the control voltage above ground will attenuate the signal path to greater than 80dB. Signal bandwidth and slew rate remain constant over the entire gain ...
UNISONIC TECHNOLOGIES CO., LTD CCVGA7C5
UNISONIC TECHNOLOGIES CO., LTD CCVGA7C5

... GNDA, the negative voltage rail for the R, G and B diodes is not connected internally to GNDD. GNDA should ideally be connected to the ground of the video DAC IC. This will prevent any ground bounce caused by digital signals from injecting noise onto the R, G and B signals. Analog GND and digital GN ...
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Dual 28V Input Voltage Charger with Linear

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NEON BULB OSCILLATOR EXPERIMENT

... At this point equation 7 is very close to being a command in the computer language BASIC. In BASIC, we can think of each variable, like q, i, and dt as the name on a mailbox (the kind you see in a post office). Inside the mailbox goes a number that is the current value of the variable. When given a ...
LTM8061 - 32V, 2A uModule Li-Ion/ Polymer Battery Charger
LTM8061 - 32V, 2A uModule Li-Ion/ Polymer Battery Charger

... A 0.68μF capacitor is typically used, which generates a timer EOC of three hours, and a precondition limit time of 22.5 minutes. If a timer-based termination is not desired, the timer function is disabled by connecting the TMR pin to ground. With the timer function disabled, charging terminates when ...
TPS77301 数据资料 dataSheet 下载
TPS77301 数据资料 dataSheet 下载

... Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 200 mV at an output current of 250 mA for 3.3-volt option) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent curre ...
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Technical Basics - 1

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... The receiver inputs of the DS90LV110 do not have internal fail-safe biasing. For point-to-point and multi-drop applications with a single source, fail-safe biasing may not be required. When the driver is off, the link is inactive. If fail-safe biasing is required, this can be accomplished with exter ...
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Project P917 - EURESCOM Home Page
Project P917 - EURESCOM Home Page

... The basic network topology shown in the figures above can be used to provide power from the CE to the VE in the same way using the reliable power facilities still existing in the CE. The CE power facilities work in well known conditions: ...
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ZVS Phase Shift Full Bridge

Cooperative Stereo Matching Using Static and Dynamic Image
Cooperative Stereo Matching Using Static and Dynamic Image

SLLIMM™ 2nd series small low-loss intelligent molded module
SLLIMM™ 2nd series small low-loss intelligent molded module

... Carmelo Mistretta, Carmelo Parisi ...
LDO Current Foldback/Current Limiter Circuits Tips
LDO Current Foldback/Current Limiter Circuits Tips

... circuit was added due to the lack of accuracy of the current foldback circuit. Then, around the year 2005, it became possible to use the foldback circuit as a current limiter too. So Torex introduced LDO's of type B, with a current foldback circuit that can detect accurately when an over-current con ...
pat3147447_fender.pdf
pat3147447_fender.pdf

... This invention relates to a tone control circuit, and particularly to a tone control circuit for electrical musical instruments such as electric guitars and the like. An object of the invention is to provide a tone control circuit which permits achievement of a brilliant highfrequency response witho ...
Voltage-Mode, Current-Mode (and Hysteretic Control)
Voltage-Mode, Current-Mode (and Hysteretic Control)

... Figure 4: This is a Boost with VMC. Note that Line Feedforward is not practical here considering the complexity of the terms. We would need to somehow set VRAMP proportional to VIN⨯(1-D)2, based on the DC gain of G(s). Also note the appearance of the Right Half Plane (RHP) zero. It also appears in t ...
Grid Code Impact on Electrical Machine Design
Grid Code Impact on Electrical Machine Design

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Current source



A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.
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