More about switch (472)

1-07-1989 | 042 This inexpensive unit switches the light on at dusk and off again at dawn. The circuit has separate time bases for the on and off delays...

1-07-1989 | 060 SENSOR SWITCH AND CLOCK One Type TL084 lc and an old quartz watch enable the con- struction of a de luxe on-off switch. Two of the four...

1-06-1989 | 20 CMOS SWITCHES FOR AUDIO APPLICATIONS T. Giffard When about ten years ago the first analogue CMOS switches and multiplexers reached the au...

1-03-1989 | 60 EE March 1989 EPROM-CONTROLLED TIME SWITCH by J. Vinckier Time switches can take many shapes. Where apparatus has to be switched on and o...

1-07-1988 | 0I The proposed power supply switches itself off when no current is drawn by the load. How this is done is shown in the circuit diagram, Fig...

1-07-1988 | This low-cost circuit enables turning room lights on and off simply by touching a round metal sensor. The light is turned on by briefly touc...

1-07-1988 | PROGRAMMABLE SWITCHING SEQUENCE The proposed control circuit is shown in the diagram as containing two relays, but this number may be increa...

1-07-1988 | Maxim Integrated Products have re- cently introduced a series of integrated step-up switching regulators designed 3V LAB =1.31(R i/R2+1) [V]...

1-07-1988 | 05 Motorist are generally well aware that car fuses do not blow just like that. None the less, when something appears to be amiss in the ele...

1-07-1988 | The circuit described here enables a choice to be made from four different stereo channels with only one switch. Internal switching is effec...