.. the first part ( Ref. 1 ) of this Design Idea (DI), we saw how to use the TDA7052A (or similar) power amp to build a minimalist siren-type power ...
.. oscillate, the result is often smoke, perhaps with a well-cooked PCB and a side order of fried tweeter. This two-part Design Idea (DI) shows some interesting ways of (mis-)using a common power amp to produce deliberate oscillations of ...
.. an analog circuit can be a frustrating experience, as noted by Nick Cornford in his Design Idea (DI), “DIY RTD for a DMM” ( Ref. 1 ). With a fortnight’s struggle, I completed the ...
.. offset error generally limits sensitivity to input spans no smaller than some hundreds of millivolts. The converter in this design avoids these faults and adds a number of new and useful features. The differential ac signal to be rectified ...
.. and reduces the LED-current change for less noise (references 1 and 2). References Linkwitz, SJ, “Loudspeaker System Design,” Wireless World, Volume 84, June 1978, pg 67. Self, D, “Inside Mixers,” Wireless World, ...
.. circuit which is there on TP4056. All this packed into a small form factor. PCB layout This is the hardware level design I have implemented keeping all the noise and stabilization problems in mind. Tracks are made with enough ...
.. What if you wouldn’t mind investing a couple more parts to speed it up? Figure 3 shows what. First disclosed in EDN Design Idea (DI), “Cancel PWM DAC ripple with analog subtraction” ( Ref. 1 ), a thrifty way to implement ...
.. the 431’s “anode” pin sinks to the same lowly fate. It gets grounded. Current sink regulation The design idea presented here offers that poor persecuted pin a more buoyant role to play, Figure 1. Figure 1. The ...
.. mirror. The dim side is the witness’s window. So, what does that have to do with electronics? This simple design idea describes a two-way current mirror that, in dubious analogy to the optical kind, can mirror or transmit ...