Organic rectifier

• US 7,724,550 B2
• Filed: 12/20/2005
• Issued: 05/25/2010
• Est. Priority Date: 12/23/2004
• Status: Expired due to Fees

• Current Assignee: PolyIC GmbH & Co. KG (Leonhard KURZ Stiftung & Company KG)
• Original Assignee: PolyIC GmbH & Co. KG (Leonhard KURZ Stiftung & Company KG)
• Inventors: Zipperer, Dietmar, Lorenz, Markus, Ullmann, Andreas, Bohm, Markus
• Primary Examiner(s): Patel; Rajnikant B
• Application Number:
  US11/722,457
• Publication Number:
  US 20080225564A1
• Time in Patent Office: 1,617 Days
• Field of Search: 363/21.03, 363/21.04, 363/21.05, 363/44, 363/48, 363/52, 363/55, 363/61, 363/68, 361/227, 361/228, 361/235, 701/1, 701/2, 701/29, 701/37, 701/36, 701/32, 315/200.R, 315/241.R, 315/245, 315/277, 315/255
• US Class Current: 363/48
• CPC Class Codes: H02M 3/07 using capacitors charged and discharged alternately by semiconductor devices with control electrode , e.g. charge pumps

Abstract

The invention relates to an electronic device (5) in the form of a flexible multilayer film body, in particular an RFID transponder, and to a rectifier (52) for such an electronic device. The rectifier (52) has at least two organic diodes or organic field effect transistors each having at least one electrical functional layer composed of a semiconducting organic material. The rectifier (52) furthermore has two or more charging or charge-reversal capacitors which are connected up to the two or more organic diodes or organic field effect transistors in such a way that the charging or charge-reversal capacitors can be charged via different current paths.

Claims

1. A rectifier for an electronic device for converting an AC voltage present between two input terminals into a DC voltage, comprising:

two input terminals;

an antenna resonant circuit comprising an antenna and a capacitor;

at least two organic diodes and/or organic field effect transistors, each having at least one electrical functional layer composed of a semiconducting organic material, and wherein the at least two organic diodes and/or organic field effect transistors are coupled to the antenna resonant circuit; and

two or more charging or charge-reversal capacitors connected to the two or more organic diodes and/or organic field effect transistors for charging of or charge-reversal of the two or more capacitors via different current paths;

the rectifier being constructed from two or more stages connected to one another, wherein in each case, two charging or charge-reversal capacitors and two organic diodes are connected such that the charging or charge-reversal capacitors are charged via different current paths, and in each case have two input terminals and two coupling terminals for coupling to the input terminals of a further stage.

2. The rectifier as claimed in claim 1, wherein a first charging capacitor and a first organic diode are arranged in a first conducting line branch, in that a second charging capacitor and a second organic diode are arranged in a second conducting line branch, in that the first and the second conducting line branch are coupled in a parallel arrangement to the input terminals of the rectifier, and in that the first and the second organic diode are connected in a back-to-back arrangement of the respective anode and cathode in the first and the second conducting line branch.

3. The rectifier as claimed in claim 1, wherein a first organic diode and a second organic diode are connected in a back-to-back arrangement of the respective anode and cathode via a charge-reversal capacitor to the first input terminal of the rectifier, in that the first organic diode is connected to the second input terminal of the rectifier and the second organic diode is connected via a charging capacitor to the second input terminal of the rectifier.

4. The rectifier as claimed in claim 3, wherein the cathode of the first organic diode and the anode of the second organic diode are connected via the charge-reversal capacitor to the first input terminal, in that the anode of the first organic diode and the cathode of the second organic diode are connected to one another via the charging capacitor, and in that the anode of the first organic diode is connected to the second input terminal.

5. The rectifier as claimed in claim 3, wherein the anode of the first organic diode and the cathode of the second organic diode are connected via the charge-reversal capacitor to the first input terminal, in that the cathode of the first organic diode and the anode of the second organic diode are connected to one another via the charging capacitor, and in that the cathode of the first organic diode is connected to the second input terminal.

6. The rectifier as claimed in claim 1, wherein, in a first stage, the cathode of the first organic diode and the anode of the second organic diode are connected to the first coupling terminal of the first stage and via the charge-reversal capacitor to the first input terminal of the first stage, in that the anode of the first organic diode and the cathode of the second organic diode are connected to one another via the charging capacitor, and in that the anode of the first organic diode is connected to the second input terminal of the first stage and the cathode of the second organic diode is connected to the second coupling terminal of the first stage.

7. The rectifier as claimed in claim 6, wherein the rectifier has two or more first stages, the first and the second input terminal of the foremost first stage forming the first and respectively the second input terminal of the rectifier (4), the first and the second coupling terminal of the respective first stage being connected to the first and respectively second input terminal of the downstream first stage, provided that the respective first stage does not form the last stage of the rectifier, and the output of the rectifier being formed by the second input terminal of the foremost first stage and by the second coupling terminal of the last first stage.

8. The rectifier as claimed in claim 1, wherein, in a second stage, the anode of the first organic diode and the cathode of the second organic diode are connected to the first coupling terminal of the second stage and via the charge-reversal capacitor to the first input terminal of the second stage, in that the cathode of the first organic diode and the anode of the second organic diode are connected to one another via the charging capacitor, and in that the cathode of the first organic diode is connected to the second input terminal of the second stage and the anode of the second organic diode is connected to the second coupling terminal of the second stage.

9. The rectifier as claimed in claim 8, wherein the rectifier has two or more second stages, the first and the second input terminal of the foremost second stage forming the first and respectively the second input terminal of the rectifier, the first and the second coupling terminal of the respective second stage being connected to the first and respectively second input terminal of the downstream second stage, provided that the respective second stage does not form the last stage of the rectifier, and the output of the rectifier being formed by the second input terminal of the foremost second stage and by the second coupling terminal of the last second stage.

10. The rectifier as claimed in claim 6 wherein the rectifier has one or a plurality of first stages and one or a plurality of second stages, in that the first and the second input terminals of a first stage are connected to the first and respectively second input terminal of a second stage and form the first and respectively the second input terminal of the rectifier, and in that the output of the rectifier is formed by the second coupling terminal of the last first stage and by the second coupling terminal of the last second stage.

11. The rectifier as claimed in claim 1 wherein one or a plurality of the organic diodes are formed by organic field effect transistors whose gate electrode is connected to the source or drain electrode.

12. The rectifier as claimed in claim 1, wherein one or a plurality of the organic diodes has an interlayer for lowering the parasitic capacitance of the organic diode.

13. The rectifier as claimed in claim 1, wherein the first and/or the second input terminal of the rectifier is connected via one or a plurality of first organic field effect transistors to the charge-reversal capacitor, in that the charge-reversal capacitor is connected via one or a plurality of second field effect transistors to the charging capacitor, and in that the one or the plurality of first field effect transistors are driven by a logic circuit.

14. An electronic device in the form of a flexible, multilayer film body of an RFID transponder, wherein the electronic device has a voltage source and a rectifier as claimed in one of the preceding claims, said rectifier being fed by the voltage source, the voltage source having the antenna resonant circuit, for coupling in an electromagnetic radiation radiated onto the electronic device.

15. The electronic device as claimed in claim 14, wherein the electronic device comprises an electronic circuit based on one or a plurality of active or passive organic components fed by the rectifier.

16. A rectifier for an RFID transponder for converting an applied AC voltage present between two input terminals of the rectifier into a DC voltage, comprising:

at least two organic diodes and/or organic field effect transistors coupled to the input terminals, each of the at least two organic diodes and/or organic field effect transistors each having at least one electrical functional layer composed of a semiconducting organic material; and

two or more charging or charge-reversal capacitors connected to the at least two or more organic diodes and/or organic field effect transistors for charging of or charge-reversal of the two or more charging or charge-reversal capacitors via different current paths;

the rectifier being constructed of two or more stages connected to one another and which have in each case two charging or charge-reversal capacitors and the two organic diodes are connected such that the charging or charge-reversal capacitors are charged via different current paths, and which have in each case two input terminals and two coupling terminals for coupling to the input terminals of a further stage.

17. The rectifier of claim 16 further including a voltage source coupled to the input terminals comprising an antenna resonant circuit including an antenna and a further capacitor, for converting an AC voltage present between the two input terminals into the applied voltage.