Active primary-sided circuit arrangement for a switch-mode power supply

  • US 7,403,399 B2
  • Filed: 03/30/2006
  • Issued: 07/22/2008
  • Est. Priority Date: 03/31/2005
  • Status: Active Grant
First Claim
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1. Circuit arrangement for a switch-mode power supply, wherein the switch-mode power supply has a primary side, which can be connected to a supply voltage, and a secondary side, which can be connected to a consumer,wherein the circuit arrangement (100) comprises a primary-sided switch (102), a control circuit (104) for controlling the primary-sided switch (102) and additional active, primary-sided components (106, 108, 110),wherein said control circuit (104) is formed by a first integrated semiconductor chip and the primary-sided switch (102) and the additional components (106, 108, 110), are integrated in at least one additional semiconductor chip, said semiconductor chip being separate from the control circuit and arranged on a circuit carrier (112) shared with the control circuit.

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