Well... NASA have discounted the effect of Solar Cycles on climate trends....
Clickety Click
The Solar Maximumum/Minimum events you mentioned are magnetic activity, sunspots etc,
not energy output.
Here's a suitable extract to summarise...
By and large, the space-based observations of the last 35 years have not recorded substantial changes in energy output from the Sun. Nonetheless, scientists include all the influences they can (including solar changes) when studying changes in climate. These estimates suggest that a small decrease in solar irradiance over the last 35 years would have caused a slight cooling of the climate over this time period – but only in the absence of other influences on Earth's climate.
The physics of the situation also doesn't back up the idea that changes in the Sun are a large force behind current climate change.