More about design (647)

1-04-2009 | In many cases, the load connected to a voltage regulator is not returned to ground but to an even lower voltage or perhaps even the negative...

1-03-2009 | Recently PREMA released the PR4101, a step-down driver designed for power LEDs. It requires an input voltage of between 7 V and 40 V and at...

1-03-2009 | To be able to play an electric guitar you need, in addition to the guitar itself, a guitar amplifier. The guitar then needs to be connected...

1-02-2009 | Several electronic component manufacturers now offer design tools online or for free download. We registered – often an obligatory step – on...

1-02-2009 | FPGAs are normally programmed in special-purpose programming languages such as VHDL, which unfortunately can be hard to learn. Now, however,...

1-02-2009 | Most PC-motherboards have multiple connectors for plugging in the cooling fans. These are increasingly frequently the four-way connectors. T...

1-02-2009 | Varactor diodes (Varicaps) along with many other exotic components which are often specifi ed in HF and RF designs are sometimes diffi cult...

1-01-2009 | Using one inverter, for example from a 74HC04 or a 4069, it is easy to construct a crystal oscillator. Unfortunately the current consumption...

1-01-2009 | The EEPROM in a microcontroller is often used to store collected data or device settings so that they are still available even if the device...

1-12-2008 | The LM335 is a low-cost temperature sensor with a range of –40 +100 degrees celcius. In this circuit, it is used to show whether the outside...