![]() The internal ground does not float, it is linked to mains earth via the diodes and resistors that make up the earth leakage detector. I have sent tri-comp a PM, hopefully he will read this before connecting the supply up.Įdit: Just fol clarity. ![]() As a result when the output is switched on or the supply comes out of current limit the voltage goes very high for a fraction of a second. The only protection is that if more that 0.4mA passes to ground the earth leakage detector will switch the supply off.Īnother possible problem(your supply may be different to mine in this respect) is that the time constants on the regulator circuit is very long. The centre point is earthed(see the symbol just above the current sensing resistor) so that each output terminal will be at half the output voltage above and below ground. Have a look at the block diagram(fig 4)The output is generated by 2 rails in series. As it stands YOU MUST NOT CONNECT THIS SUPPLY TO ANY EXPOSED METALWORK. I have been working on and off converting a similar supply for use as an HT power supply.
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