Hi guys,
I'm currently building a circuit with an input of 230 VAC, 50Hz. This is being stepped down via a transformer 230/115 VAC, 0.8A, 100VA. But I'm getting around 125 VAC after stepped down, which I think is perfectly alright as a +/- 10% allowance is given to the transformer. After which, this 125 VAC is being rectified through a simple half bridge rectifier which i designed, using 1N4004. What bemused me was that the output I'm obtaining is 170 VDC, which makes no sense. The circuit is attached below.
I've troubleshooted the circuit and have realise that the cause for this (170 VDC) is due to the circuit after the rectifier. I've measured the voltage across rectifier upon disconnecting the 15ohms resistor and it was found out to be around 125 VDC. But when the resistor was connected back, the voltage went up to 170 VDC. (I'm simply perplexed!!)
Can someone explained this phenomenon to me?
I'm currently building a circuit with an input of 230 VAC, 50Hz. This is being stepped down via a transformer 230/115 VAC, 0.8A, 100VA. But I'm getting around 125 VAC after stepped down, which I think is perfectly alright as a +/- 10% allowance is given to the transformer. After which, this 125 VAC is being rectified through a simple half bridge rectifier which i designed, using 1N4004. What bemused me was that the output I'm obtaining is 170 VDC, which makes no sense. The circuit is attached below.
I've troubleshooted the circuit and have realise that the cause for this (170 VDC) is due to the circuit after the rectifier. I've measured the voltage across rectifier upon disconnecting the 15ohms resistor and it was found out to be around 125 VDC. But when the resistor was connected back, the voltage went up to 170 VDC. (I'm simply perplexed!!)
Can someone explained this phenomenon to me?
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