Voltage converter with selectable output voltage levels

• US 20040259436A1
• Filed: 06/10/2004
• Published: 12/23/2004
• Est. Priority Date: 06/23/2003
• Status: Active Grant

• Current Assignee: Carl Su
• Original Assignee: Carl Su
• Inventors: Su, Carl
• Granted Patent: US 6,972,975 B2
• Time in Patent Office: Days
• US Class Current: 439/894
• CPC Class Codes: H01R 29/00 Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H02M 1/0025 Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
• CPC Class Codes: H02M 7/06 using discharge tubes without control electrode or semiconductor devices without control electrode

Abstract

A voltage converter includes a converter circuit, a casing, and a jumper member. The converter circuit includes a voltage level setting circuit configured for generating a feedback signal, wherein an output voltage generated by the converter circuit has a voltage level that is determined according to value of the feedback signal. The voltage level setting circuit includes a plurality of first electrical components and a first common line. The casing receives the converter circuit, and is formed with a set of first jumper holes corresponding to the first electrical components, and a second jumper hole corresponding to the first common line. The jumper member connects selected ones of the first electrical components to the first common line upon insertion into the first and second jumper holes. The value of the feedback signal is dependent upon connection status of the first electrical components to the first common line.

Claims

1. A voltage converter comprising:

a converter circuit having an input port for receiving an input voltage and an output port for providing an output voltage, said converter circuit including a voltage level setting circuit that is configured for generating a feedback signal, the output voltage generated by said converter circuit having a voltage level that is determined according to value of the feedback signal, said voltage level setting circuit including a plurality of first electrical components and a first common line;

a casing that receives said converter circuit and that is formed with a set of first jumper holes, each of which corresponds to a respective one of said first electrical components, and at least a second jumper hole corresponding to said first common line; and

a jumper member inserted into at least one of said first jumper holes and further inserted into said second jumper hole for connecting electrically selected at least one of said first electrical components to said first common line, the value of the feedback signal being dependent upon connection status of said first electrical components to said first common line.

2. The voltage converter as claimed in claim 1, further comprising an end connection device connected to said input port of said converter circuit, extending outwardly of said casing, and adapted to be connected to an external power source, said input port of said converter circuit receiving the input voltage via said end connection device.

3. The voltage converter as claimed in claim 2, wherein the input voltage is an alternating current voltage.

4. The voltage converter as claimed in claim 1, further comprising an end connection device connected to said output port of said converter circuit, extending outwardly of said casing, and adapted to be connected to an external power consuming device, whereby the external power consuming device receives the output voltage from said output port of said converter circuit via said end connection device.

5. The voltage converter as claimed in claim 4, wherein the output voltage is a direct current voltage.

6. The voltage converter as claimed in claim 1, wherein each of said first electrical components is a resistor.

7. The voltage converter as claimed in claim 1, wherein said jumper member includes a base plate, at least one first conductive pin extending from said base plate and inserted into one of said first jumper holes to connect electrically with the corresponding one of said first electrical components, and a second conductive pin extending from said base plate, coupled electrically to said at least one first conductive pin, and inserted into said second jumper hole to connect electrically with said first common line.

8. The voltage converter as claimed in claim 1, wherein said voltage level setting circuit further includes a second common line coupled electrically to said first electrical components, and a second electrical component coupled electrically to said second common line and cooperating with said first electrical components to form a voltage divider circuit.

9. The voltage converter as claimed in claim 8, wherein each of said first and second electrical components is a resistor.

10. The voltage converter as claimed in claim 8, wherein said voltage level setting circuit further includes at least a third electrical component coupled electrically across said first and second common lines.

11. The voltage converter as claimed in claim 10, wherein each of said first, second and third electrical components is a resistor.

12. The voltage converter as claimed in claim 1, wherein said converter circuit further includes:

a filtering and rectifying circuit provided with said input port;

a transformer having a primary side coupled to said filtering and rectifying circuit, and a secondary side;

an output circuit coupled to said secondary side of said transformer and provided with said output port, said voltage level setting circuit being coupled to said output circuit; and

a control circuit coupled to said voltage level setting circuit and said filtering and rectifying circuit, said control circuit controlling operation of said filtering and rectifying circuit in accordance with the feedback signal from said voltage level setting circuit such that the voltage level of the output voltage at said output port corresponds to the value of the feedback signal.