Device for processing a pilot control signal
A device capable of processing a pilot control signal having at least two modes: continuous or alternating PWM, and of generating a binary detection signal, the state of which is an indication of the mode, the device having a voltage doubler and a comparator.
1. A device for processing a pilot control signal, the device comprising:
a voltage doubler; and
a comparator,
the pilot control signal having at least two modes: a continuous mode in which the pilot control signal comprises a continuous signal or an alternating mode in which the pilot control signal comprises an alternating PWM signal, and
the comparator outputs a binary detection signal based on an input of the pilot control signal to the voltage doubler, a state of the binary detection signal being an indication of the mode of the pilot control signal.
2. The device as claimed in claim 1 , in which the pilot control signal is as defined by the standard IEC 61851.
3. The device as claimed in claim 1 , in which the voltage doubler is a Greinacher voltage doubler.
4. The device as claimed in claim 3 , in which the Greinacher voltage doubler comprises a first capacitor, of which a first terminal is connected to an input of the voltage doubler and of the device capable of receiving the pilot control signal, a first diode, of which the anode is connected to ground (Gnd) and the cathode is connected to a second terminal of the first capacitor, a second diode, of which the anode is connected to the cathode of the first diode and the cathode is connected to an output of the voltage doubler, a second capacitor, of which a first terminal is connected to the output of the voltage doubler and a second terminal is connected to ground, and a resistor, of which a first terminal is connected to the output of the voltage doubler and a second terminal is connected to ground.
5. The device as claimed in claim 1 , in which the comparator comprises a Zener diode, of which the cathode is connected to the output of the voltage doubler and to the input of the comparator.
6. A device for processing a pilot control signal having at least two modes: a continuous mode in which the pilot control signal comprises a continuous signal or an alternating mode in which the pilot control signal comprises an alternating PWM signal, and capable of generating a binary detection signal, the state of which is an indication of the mode, the device comprising:
a voltage doubler; and
a comparator,
the comparator further comprising:
a Zener diode, the cathode of which is connected to the output of the voltage doubler and to the input of the comparator, and
a first transistor of NPN type, the base of which is connected to the anode of the Zener diode and the emitter is connected to ground, and a second transistor of PNP type, the base of which is connected to the collector of the first transistor, the emitter is connected to a supply voltage and the collector is connected to the output of the comparator and of the device and generates the detection signal.
7. An application of waking up a computer for an electric vehicle, when the electric vehicle is connected to an active charging station using a device for processing a pilot control signal having at least two modes: a continuous mode in which the pilot control signal comprises a continuous signal or an alternating mode in which the pilot control signal comprises an alternating PWM signal, and capable of generating a binary detection signal, the state of which is an indication of the mode, the device comprising a voltage doubler and a comparator.