Children’s Day - Electronic Age

The children's day is coming, for this festival we will say something about the childhood. Toys and games are everyone's most precious childhood memories, which carrying childhood dream and memory. Looking back, what are the post 70 and 80 playing? Nowadays, what are the post-90 and post-00 else playing? When the toys and games evolved from a group to individual, from educational to "a joke", his childhood in social progress, what have they lost or got?

The Electronic Age
1. PC Games
Freud said that childhood decision to human life, according to this theory, when you see children are playing CS game, carrying AK47 in the cyber bar, there must be some chilling. The emergence of computer games dominated the toy world, the lack of social life making the child are more likely to experience the virtual world. In computer games, they are master, be free to decide the next step in the direction, do not listen to adult pointing and instilled in them do not want to hear the big stuff.

2. Toys
The appearance of toys upset the pure partnership in fathers' eyes. Each child in the face of another child had to beware of "would he fix me?” The children who have toys, then can't wait to get a small "cut" to their partners. Prank became a professional level of things.

3. Electronic Pets
Compared to real pets, electronic pets are more convenient to carry, better to care and will not stain carpets and sofas. More importantly, do not bear too much responsibility. If raising dead, but also just restart. On the surface, the benefits of electronic pets are more, but it allows the city's children lost their respect for life, lost the natural exchange opportunities with animals.

Source: http://www.hqew.net/article/showdetails-article-187.html

555 and OP Amp Compose V/F PT100 – ISIS Simulation

Want to be a temperature controller for the oven, the temperature may be 300 degrees. I would like to use pt100 to measure the temperature, like 555 and op amp compose V / F, made with the ISIS simulation. It’s feasible, and share special pass up .

V / F Principle:
Integral circuit voltage generated by the trigger 555 (take 2 feet), so that the output produced 555 high (3 feet), 555 feet to the op amp 3-phase side, the op amp output voltage goes high, and began to record 555 , note the time to (charging capacitor is fully charged), 555 6-pin into a high, 555 trigger, 3 feet into a low, 7 feet into a low, pulled down 6 feet, 555 feet 3 goes low after to the end of the op amp for the same low, the op amp output voltage gradient is low, less than 555 when the trigger voltage of 2 feet, 3 feet and 555 are triggered, and then into the next cycle.

Integrator output voltage and input voltage and capacitance on the size of the input voltage is not about the output voltage down to 555 when the trigger is not the same with the voltage, which results in 555 of the output frequency is not the same.



555 Description:
2 feet low (<1 / 3 V +>) 3 feet high when
6 feet high electrical Run (> 2 / 3 V +) is low when the pin 3
7 feet and 6 feet shorter then normal, to 3 feet in the low post, down 6 feet, 7 feet high and 3 feet for the disconnect, the 3 pin is low, and turn it on

Supplement:
1. ISIS simulation, always prompt step time small, can be changed under the 555 resistance or capacitance value of the time, let time slow down
2. 555 including ne555, se555, sa555.
Source: http://www.partsparty.com/index.php/555-and-op-amp-compose-vf-pt100-isis-simulation/

Children’s Day Gifts – Considerations to Buy Child Seats Safety

Children’s Day is coming. For a car family, choose a suitable and safety child seats for the children is the presented during the festival the best gift for children. But for the lack of knowledge of the parents to buy it, buy an economical and appropriate safety child seat is not an easy task. Semiconductor tells you 3 tips to choose.

1. First to research safety child seat according to the child’s size and weight, children choose their own height and weight of the child safety seat and the child car safety equipment.
2.  Whether the selected child safety seat can hold his own car, another easy installation is also very important. Inconvenient to install the best not to buy.
3.  Choose a good brand, through internationally recognized certification bodies, and can provide good services, such as test equipment, etc., must let the child try to find comfortable uncomfortable. Also see whether the excellent quality seat materials.

Source: http://www.myvogueshow.com/index.php/childrens-day-gifts-considerations-to-buy-child-seats-safety/