WZELB makes a very good 36-volt inverter. It comes with cables, a replacement fuse, and numerous safety features, such as overload, overvoltage, short circuit shutdowns, etc. This inverter is flexible and easy.
[pdf] Controlled by microprocessor, directly produce high-frequency pulse width modulation wave (SPWM) to control for UPS inverters, simplifying the control circuit of ups outdoor, to improve the stability of.
[pdf] The proposed inverter provides step-up and step-down operation in a single stage with a wide range of input voltage. It is implemented with a single output inductor, a high-frequency transformer for isolation and only one switch is switching at high-frequency at a time.
[pdf] 
