My Circuit

Women might say that they will never be able to have enough handbags and shoes (generally speaking), while men might never get enough of their power tools and hardware toys, and kids with their video games, but I am quite sure that something most of us will be able to agree on would be this – you can never have enough power outlets around, considering the rather large number of gadgets that we carry around with us these days. Smartphones, tablets, digital cameras, smart watches, the list goes on and on, and Thinkgeek intends to help you out with the $34.99 Smart AC Automotive Power Strip. The Smart AC Automotive Power Strip will be able to juice up just about all things, where this inverter plugs into your cigarette lighter socket. It will come with a couple of USB power ports and two AC outlets, and fret not about it melting down or catching fire, since the safety features which have been thrown into the mix include over-voltage, overload, short-circuit, high-temperature protection, a

This circuit is more of a DC to AC inverter, it uses a 555 IC as a low frequency oscillator, adjustable, adjustment can be done by the potentiometer R4 and frequency should be between 50-60 Hertz. The pulses from the IC 555 will go to Q1 and Q2 are amplified and sent to the transformer T1, which has its winding reversed. Capacitor C4 and coil L1 filter are the input to T1, it effectively ensures that a sine wave is formed.  DC to AC Inverter with 555 Circuit Diagram List of components R1 = 10K R2 = 100K R3 = 100 ohms R4 = 50K potmeter C1, C2 = 0.1μF C3 = 0.01μF C4 = 2700μF Q1 = TIP41A, NTE196, ECG196 Q2 = TIP42A, NTE197, ECG197 L1 = 1μH T1 = Transformer

This circuit is more of a DC to AC inverter, it uses a 555 IC as a low frequency oscillator, adjustable, adjustment can be done by the potentiometer R4 and frequency should be between 50-60 Hertz. The pulses from the IC 555 will go to Q1 and Q2 are amplified and sent to the transformer T1, which has its winding reversed. Capacitor C4 and coil L1 filter are the input to T1, it effectively ensures that a sine wave is formed.  DC to AC Inverter with 555 Circuit Diagram List of components R1 = 10K R2 = 100K R3 = 100 ohms R4 = 50K potmeter C1, C2 = 0.1μF C3 = 0.01μF C4 = 2700μF Q1 = TIP41A, NTE196, ECG196 Q2 = TIP42A, NTE197, ECG197 L1 = 1μH T1 = Transformer

Pulse Skipping Modulation Green - Input AC Yellow - Output AC after Pulse Skipping Modulation Pink - Gate Drive Signal Pulse skipping modulation (PSM) or cycle control or burst fire is a method of power control where whole cycles of voltage are applied to the load. Here I’ll talk about PSM involving a thyristor, specifically a triac. The triac connects the AC supply to the load for a given number of cycles and then disconnects the AC supply for another given number of cycles. It has of course become quite obvious from the title that the purpose of PSM is to control or limit power to the load. We know that the thyristor is a latching device – when the thyristor is turned on by a gating signal and the current is higher than the holding current and the latching current, the thyristor stays on, until the current through it becomes sufficiently low (very close to zero). The thyristor turns off when current through it becomes zero, as happens at the AC mains zero crossing. This is the natura