Let's Talk About Digital Electronics

"Digital electronics focuses on the design and implementation of the digital systems at the heart of much modern technology.

It has applications in technology such as mobile phones, television and computers, leading to demand for graduates in this area."

Tuesday, September 9, 2014

It's FUN TIME ! :)

Joke #1
JUAN: Nay alam nyo pinatayo ako ni itay sa bus para ibigay upuan ko
           sa babae!
INAY: Anak magandang asal yun!
JUAN: Kahit nakakandong po ako kay itay?



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Joke #2
JUAN: Alam mo, ayaw na ayaw kong makakita ng nakatayong babae sa bus
          habang ako eh nakaupo!
MAX: Kaya pinapaupo mo?
JUAN: Hindi, natutulog ako!




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Joke #3
INAY: Binigay na ba card nyo?
PNOY: Opo nay, good news ala na po ako line of 7!
INAY: Talaga? Patingin! English-65 Math-60 Science-69 Pilipino-67..Ala nga!



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Monday, September 8, 2014

Latest Projects in Digital Electronics

1.Three in One Tone Generator

         Various tone generator circuit produces three different type of sound according to input three different logic levels (i.e. 0&1, 1&0 and 1&1).

Circuit description of One Tone Generator

         This circuit is designed around digital IC 7400 which is NAND gate. The working of the circuit is like the working principle of oscillator circuit, where frequency depends
upon capacitors C1 and C2. The duty cycle of this circuit is 50%. The output is given to power amplifier circuit which further drive loudspeaker or head phone. For low frequency value of capacitor C1 and C2 must be high and vice-versa.

circuit diagram of three tone generator

Sunday, September 7, 2014

It's all about Digital Electronics

Most modern electronic devices such as mobile telephones and computers depend on digital electronics. In fact, most electronics about the home and in industry depend on digital electronics to work.
Digital electronics normally based on ‘logic circuits’. These circuits depend on
pulses of electricity to make the circuit work. For instance, if current is present - this is represented as ‘1’. If current is not present, this is represented as ‘0’.
Digital electronics is based on a series of 1s and 0s.
A good example of a digital electronic system is a mobile phone. As you speak into the phone, the digital electronic circuits it contains converts your voice into a series of electronic pulses (or 1s and 0s). These are transmitted and the receiving mobile phone then converts the digital pulses back into your voice. Digital circuits are used because they are efficient and work well, also, digital signals are easier to transmit than actual sound (for example a persons voice).