A　novel　asymmetric　levels　combination　is　proposed　between　the　front　and　rear　DC　Buses　in　intermediate　link　of　the　Energy　Router　(ER)　for　wider　voltage　gain.　This　is　achieved　by　a　hybrid　modulation　strategy　via　Pulse　Frequency　Modulation　(PFM)　and　Fixed-Frequency　plus　Phase-Shift　Hybrid　Modulation　(FF-PSHM)　in　a　novel　bidirectional　CLLC　resonant　converter.　Furthermore,　on　input　and　output　sides　of　the　CLLC　Resonant　Tank　Module　(RTM),　the　AC　total　voltage　of　a　Five-Levels　Coupling　Cascaded　Neutral　Point　Clamping　active　bridge　(5L-CNPC)　can　be　multi-level　through　voltage　flexible　superposition　on　coupling　transformers.　Then,　an　asymmetric　passive　resonant　components　parameter　design　is　developed　to　meet　differentiated　voltage　demands　between　the　front　and　rear　DC　Buses　in　intermediate　link　of　the　ER,　which　also　reduces　the　RMS　of　resonant　current　and　the　conduction　power　loss.　Finally,　six　innovative　voltage　gain　modes　have　been　devised　for　forward　and　backward　operations,　and　a　novel　＇left　fundamental　harmonic　five　levels＇　drive　method　is　incorporated　in　specific　modes　to　easier　to　realize　ZVS　of　lagging　switches.　Besides,　experimental　prototype　results　corroborate　that　the　attained　voltage　gains　are　alignment　with　the　theoretical　design　values,　and　conduction　loss　optimization　is　reflected　in　the　efficiency　curves　and　power　loss　distribution.　　©　2015　IEEE.