Power supply assembly

A power supply assembly including electrical components for converting input power into desired output power, comprising:

• a first circuit board having oppositely facing front and back major surfaces and a second circuit board having oppositely facing front and back major surfaces, the back major surfaces of the first and second circuit boards being substantially devoid of the electrical components, the front major surfaces of the first and second circuit boards containing most of the electrical components;
• a heat sink disposed adjacent an edge of the first and the second circuit boards;
• an electrically conducting spline member having oppositely facing major surfaces and attached at an edge to the heat sink;
• the first and second circuit boards being mounted on the spline member with the back major surfaces of the first and second circuit boards facing one another and the spline member being disposed intermediate of the first and the second circuit boards with the oppositely facing major surfaces of the spline member facing the back major surfaces of the first and second circuit boards so as to form a sandwich-like configuration with the first and second circuit boards being positioned back-to-back and the spline member being disposed therebetween;
• means for electrically connecting the first and second circuit boards;
• and
• a plurality of electric heat transfer packages are connected to the first and the second circuit boards and are attached to the heat sink at opposite ends by clip means for biasing the heat transfer packages into contact with the heat sink.

A power supply assembly including electrical components for converting input power into desired output power, comprising:

• a first circuit board having oppositely facing front and back major surfaces and a second circuit board having oppositely facing front and back major surfaces, the back major surfaces of the first and second circuit boards being substantially devoid of the electrical components, the front major surfaces of the first and second circuit boards containing most of the electrical components;
• a heat sink disposed adjacent an edge of the first and the second circuit boards;
• an electrically conducting spline member having oppositely facing major surfaces and attached at an edge to the heat sink;
• the first and second circuit boards being mounted on the spline member with the back major surfaces of the first and second circuit boards facing one another and the spline member being disposed intermediate of the first and the second circuit boards with the oppositely facing major surfaces of the spline member facing the back major surfaces of the first and second circuit boards so as to form a sandwich-like configuration with the first and second circuit boards being positioned back-to-back and the spline member being disposed therebetween;
• a third circuit board having a major surface wherein electric components are disposed, the major surface facing toward the front major surface of the second circuit board;
• an input port of the power supply assembly being disposed on the third circuit board;
• an output port of the power supply assembly being disposed on the second circuit board;
• the input and output ports being away from the heat sink;
• and
• means for electrically connecting the first and second circuit boards.

A power supply assembly including electrical components for converting input power into desired output power, comprising:

• a first circuit board having oppositely facing front and back major surfaces and a second circuit board having oppositely facing front and back major surfaces, the back major surfaces of the first and second circuit boards being substantially devoid of the electrical components, the front major surfaces of the first and second circuit boards containing most of the electrical components;
• a heat sink disposed adjacent an edge of the first and the second circuit boards;
• an electrically conducting spline member having oppositely facing major surfaces and means for slidably attaching an edge of the spline member to a longitudinal slot of the heat sink;
• the first and second circuit boards being mounted on the spline member with the back major surfaces of the first and second circuit boards facing one another and the spline member being disposed intermediate of the first and the second circuit boards with the oppositely facing major surfaces of the spline member facing the back major surfaces of the first and second circuit boards so as to form a sandwich-like configuration with the first and second circuit boards being positioned back-to-back and the spline member being disposed therebetween;
• and
• means for electrically connecting the first and second circuit boards.

A power supply assembly including electrical components for converting input power into desired output power, comprising:

• a first circuit board having oppositely facing front and back major surfaces and a second circuit board having oppositely facing front and back major surfaces, the back major surfaces of the first and second circuit boards being substantially devoid of the electrical components, the front major surfaces of the first and second circuit boards containing most of the electrical components;
• a heat sink disposed adjacent an edge of the first and the second circuit boards;
• an electrically conducting spline member having oppositely facing major surfaces and attached at an edge to the heat sink;
• the first and second circuit boards being mounted on the spline member with the back major surfaces of the first and second circuit boards facing one another and the spline member being disposed intermediate of the first and the second circuit boards with the oppositely facing major surfaces of the spline member facing the back major surfaces of the first and second circuit boards so as to form a sandwich-like configuration with the first and second circuit boards being positioned back-to-back and the spline member being disposed therebetween;
• and
• means for electrically connecting the first and second circuit boards, connecting means including a plurality of electrically conducting standoffs and a multi-leg electrical conductor which connect the first and second circuit boards.