bbboelens Posted April 20, 2007 Report Share Posted April 20, 2007 I've build the 0-30 VDC Stabilized powersupply and it works like a charm. The schematic I used :Recently I got interested in building the Volt-Ammeter LCD panel with following schematic :But I got confused (do not understand the schematic) which is given to connect these 2 to each other :Since my knowledge about electronics is a bit minimal, I got difficulties in understanding that image. Or does it mean I can attach the LCD-panel as following ?(Click this image to get the altered schematic of LCD-panel-connection)NOTEThe blue dots mark the connections at the powersupply. In the blue dots is written wich jumperpin of the LCD panel should be attached.QuestionBut, if my assumption was right, I understand that the bridge in the schematic is equal to D1 .. D4. The resistor should then be R7.But I got confused about the capacitor. The only one I can think of, is C1.(But C1 is a bi-polar cap, and in the connection-"diagram is shown a ceramic cap)It's just that I want to be sure how to connect the panel display with the powersupply, just to be sure and avoid possible damage..Anyone who can help me out ? Quote Link to comment Share on other sites More sharing options...
esp1 Posted April 20, 2007 Report Share Posted April 20, 2007 hi bb,The capacitor is C1. J4/3 is the ground [0V] connection for the VM gnd.J4/2 is measuring the voltage drop across R7, the psu current sense resistor.J4/1 is measuring the voltage output of the psu.J3/1 is the Vsupply to the the VMeter.The fact that C1 is drawn as a non -polar cap in the 'sketch' is just a quick way of drawing it,,, its apolarised cap.Hope this helps, if not re-ask.Regards Quote Link to comment Share on other sites More sharing options...
bbboelens Posted April 20, 2007 Author Report Share Posted April 20, 2007 Aha, a very quick and detailed reply !Now I can build the LCD-panel with enough confidence and mount it into my powersupply.Many thanks for your help ! Quote Link to comment Share on other sites More sharing options...
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