High frequency power converter
View Patent ↗Power at a selected frequency in the high frequency region of the spectrum is supplied by a power converter having a wide range of input voltages. The power converter uses a source oscillator and a NOR gate. The source oscillator generates a rectangular wave at the selected frequency and supplies that signal to one of the NOR gate inputs. The rectangular wave is differentiated and the differentiated signal is supplied to the second NOR input along with a feedback signal from an amplifier controlled by the NOR gate's output.
1. A high frequency power converter comprising:
a source oscillator circuit portion for generating a rectangular source wave having an output frequency outputted from the high-frequency power supply circuit;
a differentiation circuit portion for generating a differentiated signal of the rectangular source wave;
a coincidence-responsive logic gate for supplying a control voltage to an amplifier circuit portion responsive to receiving, at one of two input terminals, the rectangular source wave and responsive to receiving, at the other of the two input terminals, both the differentiated signal of the rectangular source wave and a feedback signal generated by the amplifier circuit portion.
2. The power converter of claim 1 wherein the source oscillator circuit portion comprises a Schmitt trigger.
3. The power converter of claim 1 wherein the coincidence-responsive logic gate comprises a NOR gate.
4. The power converter of claim 1 wherein the differentiation circuit portion comprises at least one resistor and at least one capacitor.
5. The power converter of claim 1 wherein the amplifier circuit portion comprises a field effect transistor having a gate terminal connected to receive the control voltage.
6. The power converter of claim 1 wherein the amplifier circuit portion comprises a regulating amplifier connected to receive a voltage signal from the amplifier output and to supply, responsive thereto, the feedback signal.
7. A method of supplying electric power at a selected high frequency, the method comprising the steps of:
generating a rectangular wave at the high frequency;
supplying the rectangular wave to a first input of a coincidence-responsive logic gate having two inputs;
differentiating the rectangular wave supplying the differentiated rectangular wave to the second input of the coincidence responsive logic gate;
supplying, as a control voltage, an output of the coincidence-responsive logic gate to an amplifier.
8. The method of claim 7 further comprising steps of generating a feedback signal responsive to the output of the amplifier and supplying the feedback signal to the second input of the coincidence-responsive logic gate.
9. The method of claim 7 wherein the coincidence-responsive logic gate comprises a NOR gate.