Abstract: A switch assembly and method includes a heat sink with two switch modules coupled thereto. Both of the switch modules are used in switching operations to make use of the entire heat sink, providing improved heat dissipation. The switch modules each have first and second switch devices, with each switch device having a gate terminal. A source voltage is applied to the switching modules and a positive portion of the source voltage is conducted through one switch device of the first switching module. A negative portion of the source voltage is conducted through one of the switching devices of the second switching module.

Abstract: An air conditioning system includes a condenser coil and a fan situated adjacent the condenser coil. The fan driven by a motor, which is reversed to change the rotational direction of the fan in response to a predetermined condition. The fan is operated in a first direction to cool a condenser coil, and reversed to blow away collected debris, thus cleaning the condenser coil. The fan is reversed in response to one or more predetermined conditions.

Abstract: A switch assembly and method includes a heat sink with two switch modules coupled thereto. Both of the switch modules are used in switching operations to make use of the entire heat sink, providing improved heat dissipation. The switch modules each have first and second switch devices, with each switch device having a gate terminal. A source voltage is applied to the switching modules and a positive portion of the source voltage is conducted through one switch device of the first switching module. A negative portion of the source voltage is conducted through one of the switching devices of the second switching module.

Abstract: A caster arrangement for cabinets used on access or raised floors of a computer room or the like. The caster arrangement allows for a small, heavy cabinet to be situated on the panels of the access floor without applying concentrated or ultimate loads on the panels that may exceed the design characteristics of the panel and access floor. The caster arrangement allows for at most three casters to apply load to a given panel while the cabinet is being moved or has an arbitrary orientation.

Abstract: A caster arrangement is disclosed for cabinets used on access or raised floors of a computer room or the like. The caster arrangement allows for a small, heavy cabinet to be situated on the panels of the access floor without applying concentrated or ultimate loads on the panels that may exceed the design characteristics of the panel and access floor. The caster arrangement allows for at most three casters to apply load to a given panel while the cabinet is being moved or has an arbitrary orientation.