Temperature control testing results for the YiHi Sx Mini G Class are now available here and there are some particularly interesting issues to discuss imho: imgur.com/a/os23png
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Temperature Control Testing Results: YiHi Sx Mini G Class (YiHi SX550j board) : electronic_cigarette
TLDR: This is an unusual one. You can get a sense from these charts of where the YiHi SxMini G Class got its reputation for being fast, accurate and smooth in temperature control mode, especially for when it came out a few years ago. But this mod created a range of challenges for our testing methodology and rig because of the pulsed (PWM) approach it takes to temperature control. What we do know for sure is that it does dry hit protection, and the temperature outcome falls within within a fairly narrow range that averages out to a fairly accurate and flat result, if a smidge too hot in most cases. But if what we are seeing is real, there may be a key difference that arises with this kind of temperature control method, where high fixed high power pulses produce rapid, tight, almost sawtooth changes in temperature in a narrow band. This is happening so fast it cannot be perceived in most states. This may be the basis for some of the subjective preferences for YiHi/PMW mods I have heard, such as it feeling "punchier" and producing better flavour (possibly from higher temperatures being reached which may have implications for those seeking to avoid thermal decomposition of their juice). Some insights may be drawn from the oscilloscope image at the end
or
Temperature Control Testing Results: YiHi Sx Mini G Class (YiHi SX550j board) : electronic_cigarette
TLDR: This is an unusual one. You can get a sense from these charts of where the YiHi SxMini G Class got its reputation for being fast, accurate and smooth in temperature control mode, especially for when it came out a few years ago. But this mod created a range of challenges for our testing methodology and rig because of the pulsed (PWM) approach it takes to temperature control. What we do know for sure is that it does dry hit protection, and the temperature outcome falls within within a fairly narrow range that averages out to a fairly accurate and flat result, if a smidge too hot in most cases. But if what we are seeing is real, there may be a key difference that arises with this kind of temperature control method, where high fixed high power pulses produce rapid, tight, almost sawtooth changes in temperature in a narrow band. This is happening so fast it cannot be perceived in most states. This may be the basis for some of the subjective preferences for YiHi/PMW mods I have heard, such as it feeling "punchier" and producing better flavour (possibly from higher temperatures being reached which may have implications for those seeking to avoid thermal decomposition of their juice). Some insights may be drawn from the oscilloscope image at the end
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