An enhanced facility for LG monitors that optimizes the content on two monitors and creates a dual taskbar. Selects and sets up the Dual Display output model and offers two possible modes: Clone display when the secondary monitor is used as "done" mode of the primary monitor and the Extended one when it is used as an extension of the primary display.
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The LTC1955 dual smart card interface provides a complete and compact solution for multicard applications. The LTC1955 and five small capacitors are all that are needed to interface two card sockets to a host microcontroller. Designed to comply with all smart card standards, the LTC1955 can be used for full sized card sockets, smaller vendor card (simlock) sockets, or any combination of smart card and vendor card sockets.
Figure 1 shows the block diagram of the LTC1955, which operates from a battery or a regulated 3.3V supply. The internal charge pump delivers a boosted voltage to two on-chip low dropout regulators. The LDOs provide programmable 1.8V, 3V or 5V regulated outputs to each of the smart card sockets. Two unidirectional channels and one bi-directional communications channel provide the signal translation necessary to interface from a microcontroller at one supply voltage to the smart cards at another supply voltage. Smart card clock and reset control circuits provide the necessary logic functions to prevent glitches or other specification violations during activation or deactivation of the cards. A smart card detection circuit on each channel observes the state of a mechanical switch and delivers the information to the microcontroller after an appropriate debounce period has expired. A simple microprocessor-friendly serial port supplies the data for command and status control, thus minimizing wire count. Finally, the LTC1955 provides all fault detection and ESD protection necessary to comply with both EMV and ISO-7816-3 smart card standards. These include short circuit detection, smart card removal during a transaction, undervoltage and over-temperature faults. In the event of a fault condition, the smart card is properly deactivated and a fault output notifies the microcontroller.
To prevent high inrush current during turn-on, an automatic soft-start circuit ramps the charge pump output (CPO) voltage at a slow rate. Soft start circuits also slow the rise time of the VCC pins when a card socket is activated to avoid start up and interference issues with the charge pump. A status bit in the serial port tells the microcontroller when the output voltage has reached its final value. This signal also enables the communication channels thereby ensuring proper compliance with smart card standards. Figure 2 shows the card supply voltage ramp as well as the internal CARD READY signal indicating that the particular output has reached its final state.
On the main smart card channel (Channel A) there are four unidirectional pins (CLKA, RSTA, C4A and C8A) and one bi-directional pin (I/OA) for communicating with the smart card. These pins connect directly to the smart card acceptor socket with little or no additional circuitry required.
The clock channels of the LTC1955 provide the level shifted clock signal used by the smart card for synchronization. The clock channels are designed specifically for high speed and can faithfully transmit a 10MHz signal. They also have clock divider modes to be able to accommodate higher system clock speeds. Two clock inputs, SYNC and ASYNC, provide maximum flexibility by allowing the user to connect the cards to a free-running high-speed system clock for asynchronous applications or to an undedicated microcontroller output for synchronous card applications. Clock stop modes, both high and low, are available for power savings in battery applications. In synchronous card applications, either or both cards can be deselected and their clock pins will remain in their current states.
Both the reset and clock channels are disabled and provide a valid low before the smart card supply voltage has reached its final value. Deactivation can be done manually or it can occur by a fault (e.g. short circuit on a smart card pin) or an undervoltage fault of the entire device. The deactivation sequencing is designed to meet applicable smart card standards.
Additional pins are included on channel A to accommodate older cards that used the C4 and C8 contact locations. These pins are unidirectional (output only) and are controlled by the same data input pin as the smart card I/O pins.
The bi-directional pins on the smart card sides of the channels are protected against short circuits to the smart card supply voltage by means of a constant current pull down. Instead of a simple pull down transistor to transmit a low to the smart card, these channels use a current source implementation. The 5mA current source provides enough current to meet the edge rate and VOL requirements while limiting the current available during a fault. The available smart card standards specify that no more than 15mA flow during faults on these pins. Of course, short circuits to ground on these channels are indistinguishable from a normal signal and must be detected by the data error checking routines.
The LTC1955 provides all of the necessary level shifting and power circuitry to interface with two smart card sockets. To further reduce board level complexity, the part includes smart card detection channels with built-in debounce circuitry. A straightforward serial port helps reduce the number of wires to the smart card socket board and can easily be expanded to 4- or 6-card applications. Since the LTC1955 provides all of the necessary smart card interface functions, only bypass capacitors and one charge pump capacitor are required for operation. The operation of the LTC1955 is designed for simplicity, and to provide a nearly transparent path to the smart card. Nevertheless, when an electrical error condition occurs, the LTC1955 responds quickly by removing power to the smart card and alerting the microcontroller. The LTC1955 offers all of this functionality in a space saving low profile (0.75mm high) 5mm 5mm QFN package.
I am currently engaged in a project with a client that necessitates efficient load sharing between two 3.7V Li-ion batteries. In order to optimize power management and minimize losses during this process, I am seeking your guidance and recommendation on a suitable Texas Instruments IC or solution. Could you kindly advise me on the most appropriate component or solution for this application?
I should also mention that these batteries will be used in a game controller application. Please let me know if you require any additional information or if there are specific parameters I should consider when selecting an appropriate load-sharing solution.
It looks like you would run into issues with the device oscillating between input batteries when their voltages are very close. Before I start discussing solutions to this issue with you, I want to run another idea past you to see if it would better fit the application.
His hard work paid off. Awarded distinction in his Strathclyde MSc degree and selected as one of the two recipients of Best MSc Student Award in the field of energy and power engineering at Strathclyde, Binnie had the opportunity to individually meet with the Vice-Chancellor, Executive Dean, and other senior faculty members at the university in Glasgow, UK. He was also invited by professors to a site visit of the laboratories and a wind farm.
I have a LG 24EN43 monitor. It supports the Dual Smart Solution software. I loaded the software on my pc but it doesn't work! I am running Windows 7. Windows Task Manager shows the dual monitor.exe runing but that's it. Nothing else is happening. I went to the LG support site and my monitor is not really listed. A similar one named 24EN43V-B is listed but it doesn't show a download for any software. Can anyone help me? Thanks!
The Eve Double Pro-line is Alfen's flagship smart solution for the semi-public environment such as businesses and supermarkets. Its rugged case is designed for high usage and regular user changeovers and can be wall or pole mounted. It houses two sockets, with optional load balancing across both. The user interfaces includes a colour screen with logo upload facility. An integrated RFID reader supports user identification and a MID-meter enables financial settlement. Internet connection is via LTE/Ethernet, with data available via the chosen third party management system provider.
Smart cities and eco-districts will shape a new city landscape in the upcoming years, making renewables the only source of energy. They have the potential to cut greenhouse gas emissions up to 99 %, reaching the ambitious energy and sustainability goals set by Europe and the rest of the world. Double smart grids is a 20th-century concept aiming at connecting the current main energy networks as(electrical and thermal) into a unique mesh. It enables the exchange of energy and new options for storage, flexibility, and reliability. The goal of this study is to show the potential energy savings captured by the implementation of a double smart grid on a district and city level, and to quantify energy savings on a European scale. The first chapter of this work aims to clarify the objective of a smart grid, how it is composed, and why it is called smart. It implies a complete understanding of the history of the two grids, digging on the district heating concept as well as the fundamental of an electrical grid. Moreover, an overview of the major energy needs that usually exist in a district has been presented, to demonstrate what a double smart grid should meet in terms of energy demands. Secondly, an exhaustive analysis has been carried out to point out the main technologies available on the market to meet these energy needs. It focuses on all major renewable heat sources and the upcoming technologies expected to help energy transition in reaching its ambitious goals. The same process is applied for the most mature renewable electricity sources, with a focus on decentralized and decentralized structures. Storage options and flexibility have been added at the list since their integration will drastically reduce energy production. This means that, before producing new energy, it is necessary to better consume the one already produced. It is always true that the greenest kWh is the one ever produced. Lastly, double smart grid synergies have been evaluated through an exhaustive analysis of a smart renewable energy scenario, that includes a complete integration of the double smart grid concept, in the first step, and a triple smart grid concept as full-cycle scenario (including green gas networks). Throughout the entire document, several project examples have been presented to complete the theoretical knowledge with concrete examples developed all over the world. Most of them have been developed by Dalkia Smart Building. The results show the necessity to boost innovation and pilot projects around double smart grids and in general smart energy systems, and it will require impressive efforts from government and private investors. 2351a5e196
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