1. A remote control for mobile machine, in particular for public works machine, agricultural or load-handling machine, intended to generate control signals towards a client device, by way of communication means, the remote control comprising:
a movable control handle that can move according to at least one degree of freedom with respect to the body of the remote control,
at least one sensor of the position of the control handle,
a unit for processing the signals emitted by the at least one sensor,
an actuator, intended to transmit control signals, processed by the processing unit to the client device,
which comprises test means intended to introduce a signal derived from a test signal emitted by the client device as input for the processing unit, and which is designed to emit, towards the client device, an information set, in response to the test signal, comprising at least one response signal, corresponding to the processing of the signal derived from the test signal by the processing unit.
2. The remote control as claimed in claim 1, wherein the information set, emitted in response to the test signal moreover comprises at least one control signal corresponding to the processing of the signal of the sensors by the processing unit.
3. The remote control as claimed in claim 1, wherein the test signal is a digital signal.
4. The remote control as claimed in claim 1, wherein the test means comprise:
means for emitting an analog signal on the basis of the test signal
means for filtering the analog signal emitted.
5. The remote control as claimed in claim 1, wherein the processing unit comprises at least one analogdigital converter.
6. The remote control as claimed in claim 4, wherein the means for emitting a signal towards the filtering means on the basis of the test signal comprise means for generating a signal of pulse width modulation type.
7. The remote control as claimed in claim 4, wherein the filtering means comprise a low-pass filter.
8. The remote control as claimed in claim 1, which comprises additional means for monitoring the processing unit, comprising:
a component for checking the supply voltage of the unit, andor
a component for checking the timing frequency of the operations in the processing unit.
9. The remote control as claimed in claim 1, which comprises at least two sensors for each degree of freedom of the handle.
10. A method of checking the operation of a processing unit of a mobile machine remote control, in particular for public works machine, agricultural or load-handling machine, intended to generate control signals towards a client device, by way of communication means, the remote control comprising:
a movable control handle that can move according to at least one degree of freedom with respect to the body of the remote control,
at least one sensor of the position of the control handle,
a unit for processing the signals emitted by the at least one sensor,
an actuator, intended to transmit control signals, processed by the processing unit to the client device,
method comprising the steps consisting in,
at the level of a client device:
emitting a test signal destined for the processing unit,
at the level of the remote control:
producing a signal derived from the test signal emitted by the client device
introducing the derived signal as input for the processing unit,
processing the signal derived from the test signal as a sensor signal at the level of the processing unit,
emitting an information set, comprising at least one response signal corresponding to the processing by the processing unit, of the signal derived from the test signal, towards the client device,
at the level of the client device:
comparing the test signal and the response signal.
11. The method as claimed in claim 10, wherein the test signal is a digital signal.
12. The method as claimed in claim 10, wherein the production of a signal derived from the test signal is carried out by:
deriving an analog signal on the basis of the test signal
filtering the analog signal thus emitted.
13. The method as claimed in claim 10, wherein the information set comprises moreover, at least one signal corresponding to the processing of the signal of the sensors by the processing unit.
14. The method as claimed in claim 11, wherein, at the level of the client device, the information set emitted by the remote control is waited for in a determined time interval after emission of the test signal.
15. The method as claimed in claim 11, which comprises a step, at the level of the processing unit, consisting in multiplexing the sensor signals and signals derived from the test signal, and in processing the multiplexed signal with processing means, in particular to carry out an analogdigital conversion.
16. The method as claimed in claim 10, wherein the detection of the position of the handle is carried out by two distinct sensors.
17. The method as claimed in claim 10, wherein at least one part of the processing is carried out, within the processing unit, in a redundant manner by at least two routines whose instructions andor data are recorded in two distinct memory areas of the processing unit.
18. The method as claimed in claim 17, wherein a first routine processes signals of a first sensor and the signal derived from the test signal, and a second routine processes signals of a second sensor and the signal derived from the test signal.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An adaptive voltage position DC-DC regulator, comprising:
a main circuit having an output inductor and an output capacitor coupled in series, the output capacitor being coupled in parallel to a load;
and a control circuit, wherein the control circuit comprises:
a sensing unit having a sensing resistor and a sensing capacitor coupled in series, electrically coupled to the output inductor of the main circuit, operable to provide a sensing signal corresponding to a voltage across the output inductor;
a resistor coupled between the output inductor and the output capacitor, the sensing resistor and the sensing capacitor being in parallel to both the output inductor and the resistor;
a feedback unit, electrically coupled to the sensing unit, operable to receive the sensing signal and to provide a feedback signal based on the voltage across the output inductor;
a comparing unit, electrically coupled to the feedback unit, operable to compare the feedback signal to a reference signal and to provide a comparison signal corresponding to a difference between the feedback signal and the reference signal;
a PWM generator, electrically coupled to the comparing unit, operable to receive the comparison signal and to provide a PWM signal based on the comparison signal; and
a driver, electrically coupled to the PWM generator, operable to provide a driving signal to the main circuit based on the PWM signal.
2. The adaptive voltage position DC-DC regulator of claim 1, wherein the main circuit is one of a buck circuit, a half-bridge isolated converter, a full-bridge isolated inverter, and a forward isolated inverter.
3. The adaptive voltage position DC-DC regulator of claim 1, wherein the PWM generator has a second input terminal configured to receive a clock signal.
4. The adaptive voltage position DC-DC regulator of claim 1, wherein the PWM generator further includes a third input terminal configured to receive and inductor current or a sensed current flowing through a switch in the main circuit.
5. The adaptive voltage position DC-DC regulator of claim 1, wherein:
the sensing resistor and the sensing capacitor are in parallel to the output inductor;
the feedback unit comprises a first resistor and a second resistor coupled in series;
the first resistor having a first end coupled to a node between the sensing resistor and the sensing capacitor and a second end to the second resistor; and
the comparing unit comprises a comparator having a first terminal coupled to the reference signal and a second terminal coupled to the second end of the first resistor of the feedback unit, the comparator further having an output terminal coupled to the PWM generator.
6. The adaptive voltage position DC-DC regulator of claim 1, wherein
the sensing resistor is a first sensing resistor;
the sensing unit further includes a second resistor having a first end coupled to the node between the first sensing resistor and the sensing capacitor and a second end coupled to a node between the output inductor and the output capacitor.
7. The adaptive voltage position DC-DC regulator of claim 1, wherein the sensing resistor, the sensing capacitor, and the output inductor have respective values that satisfy the following:
C
S
*
R
S
=
L
DCR
wherein Cs is a capacitance of the sensing capacitor, Rs is a resistance of the sensing resistor, L is an inductance of the output inductor, and DCR is a direct current resistance of the output inductor.
8. A direct current to direct current voltage regulator, comprising:
a main circuit having an output inductor and an output capacitor coupled in series, the output capacitor being coupled in parallel to a load;
a sensing unit coupled in parallel to the output inductor, the sensing unit having a sensing resistor and a sensing capacitor;
a resistor coupled between the output inductor and the output capacitor, the sensing resistor and the sensing capacitor being in parallel to both the output inductor and the resistor;
a feedback unit coupled to the sensing unit to receive the sensing signal and to provide a voltage signal based on the sensing signal;
a comparator having a first input terminal, a second input terminal, and an output terminal, the first input terminal being coupled to the sensing unit, the second input terminal being coupled to a reference terminal, the comparator being configured to compare the voltage signal to a reference signal and to generate a comparison signal corresponding to a difference between the voltage signal and the reference signal; and
a PWM generator coupled to the output terminal of the comparator to receive the comparison signal and to provide a PWM signal to the main circuit based on the comparison signal.
9. The direct current to direct current voltage regulator of claim 8, wherein the sensing resistor, the sensing capacitor, and the output inductor have respective values that satisfy the following:
C
S
*
R
S
=
L
DCR
wherein Cs is a capacitance of the sensing capacitor, Rs is a resistance of the sensing resistor, L is an inductance of the output inductor, and DCR is a direct current resistance of the output inductor.
10. The direct current to direct current voltage regulator of claim 8, wherein:
the sensing resistor having a first end coupled to the output inductor and a second end coupled to the sensing capacitor;
the direct current to direct current voltage regulator further includes a feedback unit having a first resistor and a second resistor in series, the first resistor being coupled to the second end of the sensing resistor and to the second resistor; and
the first input terminal of the comparator is coupled to the sensing unit via the first resistor of the feedback circuit.
11. The direct current to direct current voltage regulator of claim 8, wherein
the sensing resistor is a first sensing resistor;
the sensing unit further includes a second resistor having a first end coupled to the node between the first sensing resistor and the sensing capacitor and a second end coupled to a node between the output inductor and the output capacitor.
12. The direct current to direct current voltage regulator of claim 8, wherein the main circuit is a buck circuit having a first switch, a second switch, and a driver coupled to the first and second switches, and wherein the driver is coupled to the PWM generator to receive the PWM signal and is configured to control the first and second switches based on the received PWM signal.
13. A direct current to direct current voltage regulator, comprising:
a main circuit having an output inductor and an output capacitor coupled in series, the output capacitor being coupled in parallel to a load;
a sensing resistor having a first end coupled to the output inductor and a second end coupled to the output capacitor;
a feedback unit coupled to the first end of the sensing resistor to provide a voltage signal;
a comparator having a first input terminal, a second input terminal, and an output terminal, the first input terminal being coupled to the feedback unit to receive the voltage signal, the second input terminal being coupled to a reference terminal, the comparator being configured to compare the voltage signal to a reference signal and to generate a comparison signal corresponding to a difference between the voltage signal and the reference signal; and
a PWM generator coupled to the output terminal of the comparator to receive the comparison signal and to provide a PWM signal to the main circuit based on the comparison signal.
14. The direct current to direct current voltage regulator of claim 13, wherein:
the direct current to direct current voltage regulator further includes a feedback unit having a first resistor and a second resistor, the first resistor being coupled between the first end of the sensing resistor and the second resistor; and
the first input terminal is coupled to the first end of the sensing resistor via the first resistor of the feedback unit.
15. The direct current to direct current voltage regulator of claim 13, wherein the main circuit is a buck circuit having a first switch, a second switch, and a driver coupled to the first and second switches, and wherein the driver is coupled to the PWM generator to receive the PWM signal and is configured to control the first and second switches based on the received PWM signal.
16. The direct current to direct current voltage regulator of claim 13, wherein the direct current to direct current voltage regulator does not include a current source coupled to the first or second input terminal of the comparator.