Detects if a device is not properly connected to its supplySuitable for battery chargers, portable appliance supplies etc. The above circuit can be useful to detect if the load of any battery charger or plug-in adapter supply is not properly connected. The load can be a set of batteries to be charged or any other [...]
Astonishing effect 4.5V supply This circuit operates a LED in pulsing mode, i.e. the LED goes from off state, lights up gradually, then dims gradually, etc. This operation mode is obtained by a triangular wave generator formed by two op-amps contained in a very cheap 8 pin DIL case IC. Q1 ensures current buffering, in [...]
Microphone Preamplifier Circuit Mixer Circuit Clipping Monitor Tone Volume Balance Power Amplifiers Power Supply The appearance account of this arrangement are: * Six absolute microphone amplifiers with up to 60dB accretion (theoretical, not tested). Each approach has an absolute fader and an attenuator to acquiesce affiliation of agreeable instruments which accept line-level outputs (such as [...]
Power Amplifier Circuit with 2n3055 Simple and low cost. The optimal accumulation voltage is about 50V, but this amp assignment from 30 to 60V. The acute ascribe voltage is about 0.8 – 1V. As you can see, in this architecture the apparatus accept a big tolerance, so you can body it about of the components, [...]
Figure 1. Substituting the diode-capacitor network shown for an inductor allows this switching-regulator IC to deliver 2mA at comparable line and load regulation, with somewhat reduced efficiency. Figure 2. Introducing a MOS driver (IC2) enables the Figure 1 circuit to deliver as much as 20mA. In conventional applications, switching-regulator ICs regulate VOUT by controlling the [...]
Led Flasher with IC 555 Circuit A dual tandem flashing light circuit powered by a 9 volt battery, This circuit is powered by a 9 volt battery, suitable for warning lights on a tall structure. (Personally, I can’t recommend you buy anything but the Rollins Railroad Designs kit; for $4.00 you can’t go wrong. The [...]
ATmega32 Electronic Church Bell Controller Circuit Features 1. More 32 different melodies ( ADAM, PANYGJRJKO, AGJORJKO, etc) 2. Control of electrometrical clock of church with the production of pulse of duration 1Sec each one minute. 3. Automatic correction in case of power loss. 4. Percussion of clock each half but also entire hours, with possibility [...]
