More about DC (398)

1-09-1987 | EE 44 September 1987 HORN LOADING REVISITED by R.M. Harris, B.Sc. Horn loudspeakers provide good low-frequency performance and high efficien...

1-07-1987 | EE JULY/AUGUST 1987 Simple DC operated motors with a permanent magnetic stator behave as an indepen- dently energized motor. The speed of an...

1-07-1987 | EE JULY/AUGUST 1987 This precision rectifier oper- ates from an asymmetrical supply, handles input signals up to 3Vpp and has a frequency ra...

1-07-1987 | zero crossing 0 detector 16 12 00 C2 Emm 1u 16V 7 R5 R6 C3 14 3 R9U Tr i 1 The circuit proposed here is suitable for fitting into slide pro-...

1-07-1987 | This V/I display module is eminently suitable for building into an existing DC power supply, where it gives a precise indication of the set...

1-07-1987 | EE JULY/AUGUST 1987 Many modern AF power output stages are capable of deliver- ing considerable power levels in the supersonic frequency ran...

1-06-1987 | Digital multimeters are now- adays offered in many different styles and at very competitive prices. In spite of this, many enthusiasts remai...

1-05-1987 | rE,:ay19.7 CAPACITANCE METER by J Peltz A smartly designed, inexpensive, yet accurate, analogue capacitance meter. The capacitance meter de-...

1-07-1986 | one-chip DC converter I 121 R =(Vour-1.2) Finally, the output current may, of course, be boosted by means of a medium power transistor in a...

1-07-1986 | simple NiCd charger 1701 Dry batteries have one major disad- vantage: they go flat. Rechargeable types, such as NiCd cells, also suffer from...