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April 23, 2010
Is acquaintance that circuits CMOS present very big resistance of entry, thus if through this resistance it passes a small current, will be created a enough important fall of voltage, which we can exploit suitably... [more]
April 23, 2010
Light sensitive and differential temperature switch [more]
April 23, 2010
A voltage window switch is in practice the basic lower window limit of this circuit is roughly 3V and the upper limit is 9V. The window range can be extended by fitting a suitable range [more]
April 23, 2010
This circuit, is basically a resistance sensing window switch, except that the resistor takes the form of an NTC thermistor and the circuit thus responds to temperature. TH1 must have a resistance in the... [more]
April 23, 2010
The opamp is wind as a voltage comparator, with a reference voltage applied to pin 2 and the test voltage applied to pin 3: the relay turns on when the pin 3 voltage exceeds that... [more]
April 23, 2010
A circuit that will find enough applications. Basically the designing became in order to exist delay in quench one or more lamps in a stairwell or in any other space exists this need. It can... [more]
April 23, 2010
The modern mechanic switches are improved concerning of old technology. We need however many times to replacement some old switch or to check currents bigger than the durability of certain switches or simple we need... [more]
April 23, 2010
A simple circuit with which we have the possibility opening and closing the RL1 contacts. [more]
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