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Photometer and Optical Link
Photometer and Optical Link

IEEE 802.3at PoE High-Power PD Interface with External Gate Driver
IEEE 802.3at PoE High-Power PD Interface with External Gate Driver

... to as type 2 devices. Standards change and should always be referenced when making design decisions. The IEEE 802.3at standard defines a method of safely powering a PD (powered device) over a cable by power sourcing equipment (PSE), and then removing power if a PD is disconnected. The process procee ...
ch3_v1_jon
ch3_v1_jon

Circuit Basics
Circuit Basics

... is usually labelled 0V, zero volts. ...
- Texas Instruments
- Texas Instruments

... Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous output current, IO ...
Lab 1 - Seattle Central College
Lab 1 - Seattle Central College

DRV8833 Dual H-Bridge Motor Driver (Rev. D)
DRV8833 Dual H-Bridge Motor Driver (Rev. D)

... regulation, or current chopping. For DC motors, current control is used to limit the start-up and stall current of the motor. For stepper motors, current control is often used at all times. When an H-bridge is enabled, current rises through the winding at a rate dependent on the DC voltage and induc ...
MAX218 1.8V to 4.25V-Powered, True RS-232 Dual Transceiver _______________General Description
MAX218 1.8V to 4.25V-Powered, True RS-232 Dual Transceiver _______________General Description

... the 1N6050, are generally recommended. More expensive Schottky diodes improve efficiency and give slightly better performance at very low VCC voltages. Table 1 lists suppliers of both surface-mount and through-hole diodes. 1N914s are usually satisfactory, but specifications and performance vary wide ...
ADP5034 英文数据手册DataSheet 下载
ADP5034 英文数据手册DataSheet 下载

... The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. When the MODE pin is set to high, the buck regulators operate in forced PWM mode. When the MODE pin is set to low, the buck regulators operate in PWM mode when the load is a ...
mc34161d.pdf
mc34161d.pdf

... Note that many of the voltage detection circuits are shown with a dashed line output connection. This connection gives the inverse function of the solid line connection. For example, the solid line output connection of Figure 16 has the LED ‘ON’ when input voltage VS is above trip voltage V2, for ov ...
MAX5088/MAX5089 2.2MHz, 2A Buck Converters with an Integrated High-Side Switch General Description
MAX5088/MAX5089 2.2MHz, 2A Buck Converters with an Integrated High-Side Switch General Description

... The MAX5088/MAX5089 high-frequency, DC-DC converters with an integrated n-channel power MOSFET provide up to 2A of load current. The MAX5088 includes an internal power MOSFET to enable the design of a nonsynchronous buck topology power supply. The MAX5089 is for the design of a synchronous buck topo ...
Proposed SSR Technology Questions Answers to Proposed Questions
Proposed SSR Technology Questions Answers to Proposed Questions

MAX3120 Low-Profile, 3V, 120µA, IrDA Infrared Transceiver General Description
MAX3120 Low-Profile, 3V, 120µA, IrDA Infrared Transceiver General Description

... receiver efficiency at ±15° off-axis. The last term, 0.6A/W, is the sensitivity of the PIN diode. In this example, the Temic BPV22NF is an appropriate selection. The final important factor in selecting a PIN diode is effective diode capacitance. It is important to keep this capacitance below 70pF at ...
04_ELC4345_Fall2013_DC_DC_Buck
04_ELC4345_Fall2013_DC_DC_Buck

... and the inductor is “discharging.” The inductor voltage is shown in Figure 3. ...
AP7115
AP7115

... Lead Free Finish/RoHS Compliant (Note 1) ...
FXL2TD245
FXL2TD245

... FXL translators offer an advantage in that either VCC may be powered up first. This benefit derives from the chip design. When either VCC is at 0 volts, outputs are in a HIGH-Impedance state. The control inputs (T/Rn and OE) are designed to track the VCCA supply. A pull-up resistor tying OE to VCCA ...
download
download

Document
Document

... Fourth, we determined that the power, the time rate of change of the energy of a circuit component is always equal to the product of the voltage drop across the component and the current that flows through the component. In a simple circuit composed of a single resistor connected to the terminals of ...
5: Inductors transformers
5: Inductors transformers

Synchronous Boost Converter with 1.1A Switch and Integrated LDO
Synchronous Boost Converter with 1.1A Switch and Integrated LDO

MAX16999 Ultra-Low Output Voltage, Low-Quiescent
MAX16999 Ultra-Low Output Voltage, Low-Quiescent

... The MAX16999 linear regulator operates from a 2.5V to 5.5V input voltage and delivers 100mA continuous load current with a low quiescent current typically around 13μA. The output voltage is preset to internally trimmed voltages in the 0.5V to 3.3V range (see the Selector Guide). An active-low, open- ...
NCS2553 3-Channel Video Amp with Standard Definition
NCS2553 3-Channel Video Amp with Standard Definition

Introduction - Class Home Pages
Introduction - Class Home Pages

... That capacitor appears as a parasitic device Between the two signal traces In accompanying drawing As we continue to reduce the size of a design Those traces are moved closer and closer together The distance between the plates decreases Thereby increasing the associated capacitance Because the volta ...
Table of contents
Table of contents

... probably wire-wound. If it slides smoothly, then we have an element potentiometer. If part of the travel is smooth and part rough, it is a bad resistor. 3. For a non-linear pot, we can realize a slow change in resistance while approaching one end of the element, and rapid change while approaching to ...
3.3 V, 4.25 Gbps, Limiting Amplifier ADN2892
3.3 V, 4.25 Gbps, Limiting Amplifier ADN2892

... loss of signal (LOS) detection circuitry and a received signal strength indicator (RSSI). This part is optimized for Fibre Channel (FC) and Gigabit Ethernet (GbE) optoelectronic conversion applications. The ADN2892 has a differential input sensitivity of 3.5 mV p-p and accepts up to a 2.0 V p-p diff ...
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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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