Rectifier circuit
Rectifier circuits which are usable, instead of diodes, for rectifying alternating voltages, and which, like diodes, form two-terminal networks having a cathode terminal and an anode terminal. The power loss of these rectifier circuits is clearly less that the power loss of silicon p-n diodes. These rectifier circuits also include voltage clamping functions.
1. A rectifier circuit, comprising:
a cathode terminal;
an anode terminal; and
an electronic circuit provided between the cathode terminal and the anode terminal, which includes an MOS transistor having an integrated inverse diode, a capacitor and a differential amplifier;
wherein a first input of the differential amplifier is connected to the cathode terminal via a diode and a second input of the differential amplifier is connected to the anode terminal via a diode.
2. The rectifier circuit of claim 1 , wherein the capacitor is connected to the cathode terminal via a diode.
3. The rectifier circuit of claim 1 , wherein the capacitor is connected to the cathode terminal via a series connection of a diode and a resistor.
4. The rectifier circuit of claim 1 , wherein the differential amplifier is constructed symmetrically.
5. The rectifier circuit of claim 1 , further comprising:
a power amplifying stage.
6. The rectifier circuit of claim 5 , wherein the input of the power amplifying stage is connected to the output of the differential amplifier.
7. The rectifier circuit of claim 5 , wherein the power amplifying stage has two transistors whose gate terminals are connected to each other.
8. The rectifier circuit of claim 5 , wherein the power amplifying stage has two transistors whose emitters are connected to each other.
9. The rectifier circuit of claim 5 , wherein the output of the power amplifying stage is connected to the control input of the MOS transistor.
10. The rectifier circuit of claim 1 , further comprising:
a limiter which limits the potential difference between the cathode terminal and the anode terminal to a predefined value.
11. The rectifier circuit of claim 1 , further comprising:
at least one overvoltage protection element.
12. An electronic component for rectifying an alternating voltage, comprising:
a cathode terminal;
an anode terminal; and
an electronic circuit provided between the cathode terminal and the anode terminal, which includes an MOS transistor having an integrated inverse diode, a capacitor and a differential amplifier;
wherein a first input of the differential amplifier is connected to the cathode terminal via a diode and a second input of the differential amplifier is connected to the anode terminal via a diode.
13. The electronic component of claim 12 , further comprising:
at least one mounting rack;
at least one MOS transistor (MOS);
at least one integrated circuit (IC); and
at least one capacitor (C).
14. A generator for providing a voltage supply of a motor vehicle, comprising:
at least one rectifier circuit, the at least one rectifier circuit including:
a cathode terminal;
an anode terminal; and
an electronic circuit provided between the cathode terminal and the anode terminal, which includes an MOS transistor having an integrated inverse diode, a capacitor and a differential amplifier;
wherein a first input of the differential amplifier is connected to the cathode terminal via a diode and a second input of the differential amplifier is connected to the anode terminal via a diode.
15. A generator for providing a voltage supply of a motor vehicle, comprising:
an electronic component for rectifying an alternating voltage, including:
a cathode terminal;
an anode terminal; and
an electronic circuit provided between the cathode terminal and the anode terminal, which includes an MOS transistor having an integrated inverse diode, a capacitor and a differential amplifier;
wherein a first input of the differential amplifier is connected to the cathode terminal via a diode and a second input of the differential amplifier is connected to the anode terminal via a diode.