Showing posts with label frequency. Show all posts
Showing posts with label frequency. Show all posts
Friday, August 9, 2013
High Frequency Generator Circuit
This is a design circuit for high frequency waveform generator is very useful in electronic experiment and design. This circuit is generate sine wave oscillation, but actually we can modify the circuit to generate triangle or square wave function. The core of this waveform generator is MAX038. This integrated circuit chip gives complete function to build a waveform generator/function generator. This is the figure of the circuit;
The frequency can be controlled using current. If we disconnect the 20k RIN from REF (pin 1) and connect it to a DAC, then we can control the frequency using microcontroller or digital interface. We can even control the chip using a quartz crystal (PLL) by controlling the current using a phase comparator output that compares the sync output (pin 14 of MAX038) and a reference clock from quartz crystal oscillator. This waveform generator integrated circuit chip is very interesting since it can generate 0.1Hz to 20MHz, very wide operating frequency, as expected for every waveform generator instruments.
Monday, August 5, 2013
Auto Car prevent theft circuit FREQUENCY MODULATION
This FREQUENCY MODULATION radio controlled anti-theft warning signal can be utilised with any vehicle having 6 – to 12-volt DIRECT ELECTRIC CURRENT power grid. The miniskirt VIRAL HAEMORRHAGIC FEVER, FREQUENCY MODULATION sender is climbed on the vehicle at dark, when it is parked in the railcar porch or parking.
The recipient CXA1019, an IC-based FREQUENCY MODULATION wireless mental faculty, which is freely uncommitted on the marketplace at a sensible damage, stays inside. The recipient is tuned up to the relative frequency of the sender. When the vector is on and the signs are experienced by FREQUENCY MODULATION receiving set, no sibilation sound is uncommitted at the recipient turnout. Thus transistor T2 (BC548) not to follow up.
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