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MAX1719/MAX1720/MAX1721 SOT23, Switched-Capacitor Voltage Inverters with Shutdown General Description
MAX1719/MAX1720/MAX1721 SOT23, Switched-Capacitor Voltage Inverters with Shutdown General Description

... 12kHz, and the MAX1719/MAX1721 operate at 125kHz. High efficiency, small external components, and logiccontrolled shutdown make these devices ideal for both battery-powered and board-level voltage conversion applications. Oscillator control circuitry and four power MOSFET switches are included on-ch ...
LM2907/LM2917 Frequency to Voltage Converter (Rev. D)
LM2907/LM2917 Frequency to Voltage Converter (Rev. D)

... Figure 8. Tachometer Currents I2and I3 vs Temperature ...
DPSS ECS Replacement - Schedules AB
DPSS ECS Replacement - Schedules AB

... Where there is insufficient space provided in Schedule B, particulars must be furnished on a separate sheet marked with the number of the Schedule A and item referred to. Where the Contractor does not comply with the Employer’s requirements in the Works Info or Schedules A&B, these deviations must b ...
Switched Cap Circuits Provide Efficient and
Switched Cap Circuits Provide Efficient and

... TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguar ...
Evaluates: MAX1898 MAX1898 Evaluation Kit General Description Features
Evaluates: MAX1898 MAX1898 Evaluation Kit General Description Features

... The LED on the EV kit is driven by the CHG pin. Depending on the Li+ cell’s charging status, the pin is low or high impedance, thus turning the LED ON or OFF. If the Li+ cell cannot be charged to 2.5V in less than 1/4 of the total programmed charge time, the charger will go into fault mode. During t ...
FlexPAC
FlexPAC

chapter21
chapter21

... always greater than any of the individual resistances If one device in the series circuit creates an open circuit, all devices are inoperative ...
DATA  SHEET BLV45/12 VHF power transistor August 1986
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... PRODUCT SAFETY This device incorporates beryllium oxide, the dust of which is toxic. The device is entirely safe provided that the BeO disc is not damaged. ...
Low Distortion Differential ADC Driver AD8138-EP
Low Distortion Differential ADC Driver AD8138-EP

... The power dissipated in the package (PD) is the sum of the quiescent power dissipation and the power dissipated in the package due to the load drive for all outputs. The quiescent power is the voltage between the supply pins (VS) times the quiescent current (IS). The load current consists of the dif ...
ECE 1250 Lab 7 Measuring: Voltage Building: Op
ECE 1250 Lab 7 Measuring: Voltage Building: Op

PSRR for Purepath Digital Audio Amplifiers
PSRR for Purepath Digital Audio Amplifiers

... • The audio 1-kHz signal • Harmonic distortion of the 1-kHz signal (second and third harmonics shown) • Sidebands to the 1-kHz tone (and to the harmonics) coming from the multiplication of the 100-Hz ripple voltage and the 1-kHz audio signal and its harmonics • Feedthrough of the 100-Hz signal, with ...
ADA4862-3
ADA4862-3

... pin is left floating (feedback is provided via the internal 550 Ω), and the input is applied to the noninverting input. The noise gain for this configuration is 1. Frequency performance and transient response are shown in Figure 31 through Figure 33. ...
AP7333-12SRG-7 Datasheet
AP7333-12SRG-7 Datasheet

MPP_Orbit_07052008
MPP_Orbit_07052008

LM138/LM338 5-Amp Adjustable Regulators
LM138/LM338 5-Amp Adjustable Regulators

... An input bypass capacitor is recommended. A 0.1 μF disc or 1 μF solid tantalum on the input is suitable input bypassing for almost all applications. The device is more sensitive to the absence of input bypassiing when adjustment or output capacitors are used but the above values will eliminate the p ...
MAX1742/MAX1842 1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches General Description
MAX1742/MAX1842 1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches General Description

... Constant-Off-Time Mode Constant-off-time operation occurs when the current through the PMOS switch is greater than the Idle Mode threshold current (which corresponds to a load current of half the Idle Mode threshold). In this mode, the regulation comparator turns the PMOS switch on at the end of eac ...
LM138/LM338 5-Amp Adjustable Regulators
LM138/LM338 5-Amp Adjustable Regulators

... An input bypass capacitor is recommended. A 0.1 μF disc or 1 μF solid tantalum on the input is suitable input bypassing for almost all applications. The device is more sensitive to the absence of input bypassiing when adjustment or output capacitors are used but the above values will eliminate the p ...
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Power Input to a Source

Common Mode Feedback Analysis for EIT Systems
Common Mode Feedback Analysis for EIT Systems

PIT 96.1 - Communications and signal processing
PIT 96.1 - Communications and signal processing

... All signals take a finite time to propagate from one place to another, whether it be between two components on a circuit board or along a cable of hundreds of meters. For many electrical signals, however, this time can be neglected. The reason is that the propagation time is often very small compare ...
AN51 - Power Conditioning for Notebook and
AN51 - Power Conditioning for Notebook and

... switch “off” time. This is a very efficient way of powering the switcher because power drain does not increase with regulator input voltage. However, the circuit is not selfstarting, so some means must be used to start the regulator. This is performed by an internal current path in the LT1432 which ...
development of matlab simulink model for svpwm with
development of matlab simulink model for svpwm with

... are associated with harmonics of higher order (fc/f+1),(fc/f-1) or (2N-1), where N is the number of pulse per half cycle. Thus, by increasing the number of pulses per half cycle, the order of dominant harmonic frequency can be raised, which can be filtered out easily. In fig.8 N=5, therefore harmoni ...
ADP1110 - Analog Devices
ADP1110 - Analog Devices

... transferred to the load when the switch turns off. Because both the collector and the emitter of the switch transistor are accessible on the ADP1110, the output voltage can be higher, lower, or of opposite polarity than the input voltage. To specify an inductor for the ADP1110, the proper values of ...
LeCroy Current Probes Datasheet
LeCroy Current Probes Datasheet

... ADP300 is good for troubleshooting low frequency power devices and other circuits where the reference potential is elevated from the ground or the ground is unknown. The 100 MHz bandwidth ADP305 is designed for measuring the floating voltages found in today’s high-speed power electronics. PMA2 – Pow ...
TPS51217 数据资料 dataSheet 下载
TPS51217 数据资料 dataSheet 下载

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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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