Voltage supply arrangement and method for production of electrical power
View Patent ↗A voltage supply arrangement is proposed, which provides a voltage from a first power range in a first operating mode and from a second power range in a second operating mode, to a first electrical load. The voltage supply arrangement includes a voltage converter which is coupled on the input side to a voltage input of the voltage supply arrangement and on the output side to a first connection of a first switch, which is connected at a second connection to a voltage output of the voltage supply arrangement for connection of a first electrical load. The voltage supply arrangement further includes a second switch, which is coupled at a first connection to the voltage input and at a second connection to the voltage output, and a drive circuit, which is configured to set the first and the second switch to the first or the second operating mode in response to a control signal.
1. A transmission arrangement comprising:
a voltage supply arrangement which can be operated in a first or in a second operating mode and is configured to provide a voltage in the first operating mode from a first power range, and from a second power range in the second operating mode, to a first electrical load, comprising:
a voltage converter whose input side is coupled to a voltage input of the voltage supply arrangement in order to supply an input voltage and at a voltage converter output to a first connection of a first switch;
the first switch, which is coupled at a second connection to a voltage output of the voltage supply arrangement for connection of the first electrical load;
a second switch, which is coupled at a first connection to the voltage input of the voltage supply arrangement and at a second connection to the voltage output of the voltage supply arrangement; and
a drive circuit, which has at least one drive circuit input for supplying at least one control signal, coupled at a first output to a control input of the first switch and at a second output to a control input of the second switch, and is configured to drive the first and the second switch in response to the at least one control signal;
a modulator which has an input for supplying a payload signal to be transmitted, and has an output for providing a modulated signal;
a transmission amplifier, which is connected at one input to the output of the modulator, and has a power amplifier as well as an output for providing a signal to be transmitted; and
an antenna, which is coupled at one input to the output of the transmission amplifier and is configured to transmit the signal to be transmitted;
wherein the voltage supply arrangement is connected at the voltage output to the transmission amplifier to supply voltage thereto.
2. The transmission arrangement of claim 1 , wherein the voltage converter provides first and second voltage converter output voltages at one or more voltage outputs of the voltage supply arrangement, and wherein the voltage supply arrangement is connected to the modulator at the second voltage output and at the one or more voltage outputs of the voltage supply arrangement.
3. The transmission arrangement of claim 1 , wherein the modulator is configured to process the payload signal to be transmitted, and the transmission amplifier is configured to amplify the modulated signal using a polar transmitter principle.
4. The transmission arrangement of claim 1 , wherein the transmission arrangement is coupled to the control input of the first switch or to the control input of the second switch or both, such that the first or the second switch or both modulate the amplitude of the signal being transmitted, in response to the payload signal.
5. The transmission arrangement of claim 1 , wherein the power amplifier comprises a bipolar transistor, which is an amplifying component in the power amplifier, and a controllable resistance, which is coupled to a base of the bipolar transistor and, by means of a resistance control line, is coupled to the drive circuit, and is configured to set a base current for the bipolar transistor such that an operating point of the bipolar transistor and thus a power provided from the power amplifier can be set in this way.