EP4693793A1

EP4693793A1 - A regulation module

Info

Publication number: EP4693793A1
Application number: EP24193603.8A
Authority: EP
Inventors: Michal Chromek; Jiri Valek
Original assignee: Log Iq SRO
Current assignee: Log Iq SRO
Priority date: 2024-08-08
Filing date: 2024-08-08
Publication date: 2026-02-11

Abstract

The invention relates to a regulation module for regulating power supply of an external regulated device by means of a feedback signalling with an external control system, in particular for regulating power supply of one or two heating elements of the regulated device. The architecture of the regulation module comprises: two rectifier modules (11, 12) for rectifying power supply of the external regulated device to direct current; and a relay module (21) with two modulation circuits (M11, M12) for modulating pulse width of the rectified power supply of the external regulated device and an action circuit (AC) for switching the external regulated device. Each modulation circuit (M11, M12) contains a first relay (KAn), and the action circuit (AC) contains a second relay (KB).

Description

Field of technology

The present invention relates to a regulation module for regulating power supply of an external regulated device by means of a feedback signalling with an external control system, in particular for regulating power supply of one or two heating elements of the regulated device.

Prior art

In the prior art, external control systems are known for controlling and optimizing the load of the power grid with a function of a power peak controller according to DIN 18875 of 2015. These power peaks concern, for example, regulated devices with one or two heating elements, such as electrical appliances used in restaurants or households.
The disadvantage of connecting an external control system directly to the regulated device is the variability in the currents (DC, AC) and voltages (12 to 230 V) used in the heating elements of the regulated device, wherein it is not an exception to have two heating elements within one regulated device operating at two different current and voltage levels (e.g. professional kitchen appliances used in restaurants).
Therefore, there is a need arising in the prior art and the object of the invention is to provide a universal regulation module for unifying the variability in the applied currents (DC, AC) and voltages (12 to 230 V) in the heating elements of the regulated device and for subsequent connection of the regulated device to an external control system for controlling and optimizing the load of the power grid with the function of a power peak controller.

Summary of the invention

The object of the invention is achieved by a regulation module according to claim 1, for regulating power supply of an external regulated device by means of a feedback signalling with an external control system, in particular for regulating power supply of one or two heating elements of the regulated device. Preferred embodiments of the regulation module are described in claims 2 to 9.
The architecture of the regulation module comprises: two rectifier modules for rectifying power supply of the external regulated device to a direct current; and a relay module having two modulation circuits for modulating pulse width of the rectified power supply of the external regulated device and an action circuit for switching the external regulated device. Each modulation circuit comprises a first relay and the action circuit comprises a second relay. A more detailed description of the circuitry can be found in the exemplary embodiments.
The underlying idea of the regulation module according to the present invention is that the variable current (DC, AC) and voltage (12 to 230 V) levels in the heating elements of the regulated device are rectified and unified to a constant DC voltage for connection to the external control system. The external control system can thus be used with a universal regulation module for a large variety of regulated devices, e.g. electrical appliances used in restaurants or households.
In the case of connecting an external regulated device with two heating elements, the regulation module combines two input signals from the external regulated device to switch two heating elements into one output for the external control system. It also allows sensing of two independent temperature signals in one external regulated device.
The amplitude range of the input voltage from the external regulated device is 12 to 250 V AC or DC, the modulated output voltage has a constant amplitude, preferably in the range of 4 to 6 V DC (e.g. 5 V DC), and a variable pulse width. The pulse width of the modulated output voltage is narrower the higher the amplitude of the input voltage and, conversely, wider the lower the amplitude of the input voltage.
An external regulated device is preferably a kitchen appliance with a heating element used in restaurants, e.g. cooker, oven, hob, kettle, combi steamer, dishwasher, electric grill, toaster, coffee machine, boiling pan, etc. Alternatively, a device from another application domain, e.g. a boiler, an electric heating element, a washing machine, a dryer, etc., may also be considered as an external regulated device. An external control system is preferably a system for controlling and optimizing the load on the power grid with a peak power controller function.
An optional part of the regulation module architecture is also an indication module for indicating the status of the regulation module, in particular for indicating the status of the two input connectors, the status of the power supply of the regulation module and the status of the connection of the second relay of the action circuit to the external control system.

Brief description of drawings

Figure 1 shows a circuit diagram of a regulation module, an external regulated device and an external control system.
Figure 2 shows a circuit diagram of a relay module with two modulation circuits and an action circuit.
Figure 3 shows a circuit diagram of two rectifier modules.
Figure 4 shows a circuit diagram of an indicator module.

Examples

Figure 1 shows a regulation module 10 for regulating power supply of one or two heating elements 1, 2 of an external regulated device by means of a feedback signalling with an external control system 3. The regulation module comprises: a first, second, third and fourth input connector CH11, CH12, CH21, CH22 connectable to the regulated device; a first and second output connector OUT1, OUT2 connectable to the regulated device; a first and second power connector L, N connectable to the power source; a first and second signal connector A, B connectable to the control system; and a first and second action connector C, D connectable to the control system. Further visible in Figure 1 are transformer connectors T1 and T2 of the external control system 3, which are connected to a winding on a toroid core of a transformer through which the power supply wire of the external regulated device is routed.
Figure 2 shows a circuit diagram of a relay module with two modulation circuits M11, M12 for modulating pulse width of the rectified (see below) power supply of the external regulated device and the action circuit AC for switching the external regulated device. The modulation circuits M11, M12 have the same architecture, differing only in the connection of their first input J9, J13 and second input J10, J14 to the first output J4, J8 and second output J3, J7 of the first module 11 and second module 12 of the rectifier, respectively (Figure 3). The first output J11, J15 of both modulation circuits M11, M12 is connected to the first signal connector A, and the second output J12, J16 of both modulation circuits M11, M12 is connected to the second signal connector B. Only the first modulation circuit M11 will be described below, and the same description applies to the second modulation circuit M12.
The modulation circuit M11 comprises a set of electronic means connected between the first and second inputs J9, J10, and suitable for modulating pulse width of the rectified power supply of the external regulated device from an input voltage with an amplitude in the range of 12 to 350 V DC (350 V DC if the voltage of the regulated device is 250 V AC) to a modulated output voltage with a constant amplitude, preferably in the range of 4 to 6 V DC (e.g. 5 V DC), and with a variable pulse width. The modulation circuit M11 further comprises a first relay KA1 (e.g. of the single-pole single-throw type, SPST) comprising: on a control side, an electromagnetic element connected to said set of electronic means; and on a switch side, a switch connected between the first and second outputs J11, J12.
The set of electronic means comprises:

a. a first resistor RA1 and a Zener first diode DA1 in the reverse direction, connected in series between the first input J9 and the second input J10;
b. a MOSFET transistor QA1 with an enhancement type N channel, having a "drain" (D), "source" (S) and "gate" (G) electrodes, wherein the "source" (S) electrode is connected to the second input J10 and the "gate" (G) electrode is connected between the first resistor RA1 and the Zener first diode DA1, wherein a second diode DB1 is connected between the "source" (S) and "drain" (D) electrode in the forward direction;
c. a third diode DC1 connected in the forward direction between the "drain" electrode (D) of the MOSFET transistor QA1 and the first input J9;
d. a first polarized capacitor CA1 connected with the positive pole to the first input J9;
e. a first inductor LA1 connected between the "drain" electrode (D) of the MOSFET transistor QA1 and the negative pole of the first polarized capacitor CA1;
f. a second and third resistor RB1, RC1 connected in series to the negative pole of the first polarized capacitor CA1 and the first inductor LA1;
g. a first NPN transistor QB1 having a "collector" (C), "base" (B) and "emitter" (E) pin, wherein the "emitter" pin (E) is connected to the negative pole of the first polarized capacitor CA1 and the first inductor LA1, and the "base" pin (B) is connected between the second and third resistor RB1, RC1;
h. a Zener fourth diode DD1 and a second capacitor CB1 connected in parallel and in the forward direction between the third resistor RC1 and the positive pole of the first polarized capacitor CA1, wherein the Zener fourth diode DD1 in the forward direction and the second capacitor CB1 are further connected to the electromagnetic element of the control side of the first relay KA1;
i. a fourth resistor RD1 and a third capacitor CC1 connected in parallel to the Zener fourth diode DD1 and the second capacitor CB1;
j. an optocoupler U1 comprising a fifth diode DE1 and a second NPN transistor QC1 having a "collector" (C), "base" (B) and "emitter" (E) pin, wherein an optical link can be formed between the fifth diode DE1 and the "base" (B) pin of the second NPN transistor QC1, wherein the fifth diode DE1 is connected in the forward direction between the fourth resistor RD1 and the "collector" pin (C) of the first NPN transistor QA1, wherein the "collector" pin (C) of the second NPN transistor QC1 is connected to the "gate" electrode (G) of the MOSFET transistor QA1 between the first resistor RA1 and the Zener first diode DA1, and the "emitter" pin (E) of the second NPN transistor QC1 is connected to the second input J10 and the Zener first diode DA1, wherein the "emitter" pin (E) of the second NPN transistor QC1 is further connected to the "base" pin (B) of the second NPN transistor QC1 and a fifth resistor RE1 is connected between the "emitter" pin (E) and the "base" pin (B);
k. a sixth diode DF1 connected in the forward direction between the Zener fourth diode DD1 and the electromagnetic element of the control side of the first relay KA1, the electromagnetic element being further connected between the "emitter" pin (E) of the first NPN transistor QB1, the negative pole of the first polarized capacitor CA1, the first inductor LA1 and the second resistor RB1;
l. a fourth polarized capacitor CD1 connected in parallel to the electromagnetic element of the control side of the first relay KA1, where the positive pole is connected to the sixth diode DF1 and the negative pole is connected between the "emitter" pin (E) of the first NPN transistor QB1, the negative pole of the first polarized capacitor CA1, the first inductor LA1 and the second resistor RB1;
m. a seventh diode DG1 connected in parallel to the fourth polarized capacitor CD1 and the electromagnetic element of the control side of the first relay KA1, and also in the forward direction between the negative and positive poles of the fourth polarized capacitor CD1; and
n. a sixth resistor RF1 connected to a side circuit behind the sixth diode DF1, and then to an indicator module 31.

Voltage in the range of 12 to 350 V DC is applied to the first and second inputs J9, J10. This voltage closes the MOSFET transistor QA1 via the first resistor RA1 and starts to charge the first polarized capacitor CA1 via the first inductor LA1. This voltage is further applied to a simple comparator formed by the Zener fourth diode DD1. At the voltage given by the Zener voltage of the Zener fourth diode DD1, the first NPN transistor QB1 is closed via the third resistor RC1, thus lighting the fifth diode DE1 in the optocoupler U1. The second NPN transistor QC1 in the optocoupler U1 closes and the control "gate" (G) electrode of the MOSFET transistor QA1 is grounded. The MOSFET transistor QA1 opens and the first polarized capacitor CA1 stops charging. This ensures that a voltage of the magnitude given by the Zener voltage of the Zener fourth diode DD1 is maintained at the junction of the Zener fourth diode DD1 and the sixth diode DF1, which switches the first relay KA1 at the output. The operating contacts of the first relay KA1 of the first and second inputs J9, J10 are connected in parallel. The above-described procedure is repeated.
The action circuit AC for switching the external regulated device comprises:

a. a first input J17 connected to the first input connector CH11;
b. a second input J18 connected to the third input connector CH21;
c. a first output J19 connected to the first output connector OUT1;
d. a second output J20 connected to the second output connector OUT2;
e. a power input connected to the first power connector L and the first signal connector A;
f. a power output connected to the second power connector N and the second action connector D;
g. an action input connected to the first action connector C; and

h. a second KB relay (e.g. double-pole double-throw type, DPDT) comprising: on a control side, an electromagnetic element connected between the action input and the power output; and on a switch side, a first switch connected between the first input J17 and the first output J18, and a second switch connected between the second input J19 and the second output J20;
i. an eighth resistor RH1, a ninth diode D11 and a sixth capacitor CF1 connected in series and in the forward direction between the power input and the power output of the action circuit AC;
j. a ninth and tenth resistor RI1, RJ1 connected in series with each other and in parallel to the sixth capacitor CF1;
k. an eleventh resistor RK1, an eleventh diode DK1 and a seventh capacitor CG1 connected in series and in the forward direction between the action input and the power output of the action circuit AC; and
l. a twelfth and thirteenth resistor RL1, RM1 connected in series with each other and in parallel to the seventh capacitor CG1.

The action circuit AC is powered by the operating voltage of the regulated device, in which the regulation module is installed, and this operating voltage is supplied to the first power connector L and the second power connector N. The second relay KB is controlled by this voltage, which is switched on the first and second input J17, J19 from the first and third input connectors CH1, CH3. The first and second output J18, J20 of the second relay KB are applied to the first and second output connectors OUT1, OUT2 and are further used to control the regulated device, in which the regulation module is installed. The action circuit AC comprises the second relay KB and several passive components, which have the task of adjusting the operating voltage to values suitable for the tenth and twelfth indication diodes DJ1 and DL1 of the indication module 31.
Figure 3 shows a circuit diagram of the two rectifier modules 11, 12 for rectifying power supply of the external regulated device to a direct current. The rectifier modules 11, 12 have the same architecture, differing only in the connection of their first input J1, J5 and second input J2, J6 to the first and second input connector CH11, CH12, and to the third and fourth input connector CH21, CH22, respectively (Figure 2). The first and second outputs J4, J3 of the first rectifier module 11 are connected to the first and second inputs J9, J10 of the first modulation circuit M11, and the first and second outputs J8, J7 of the second rectifier module 12 are connected to the first and second inputs J13, J14 of the second modulation circuit M12. Only the first rectifier module 11 will be described below, and the same description applies to the second rectifier module 12.
The first rectifier module 11 comprises a first rectifier circuit G11 for rectifying power supply of the external regulated device to a direct current, comprising:

a. a first input J1 connected to the first input connector CH11;
b. a second input J2 connected to the second input connector CH12;
c. a first output J4;
d. a second output J3;
e. a Graetz rectifier bridge D1 connected on the input side between the first and second input J1, J2, and on the output side between the first and second output J4, J3;
f. a seventh resistor RG1 and a second inductor LB1 connected in series between the second input J2 and the input side of the Graetz rectifier bridge E1;
g. a varistor V1 connected in parallel between the first and second input J1, J2 and the input side of the Graetz rectifier bridge E1; and
h. a fifth capacitor CE1 connected in parallel between the first and second output J4, J3 and the output side of the Graetz rectifier bridge E1.

The input, control voltage from the regulated device is fed through the seventh protective resistor RG1 and the varistor V1 to the Graetz rectifier bridge E1 and the fifth capacitor CE1, which have the task of adjusting AC voltage to DC voltage required to control one or two heating elements of the regulated device. If DC voltage is already applied to the first and second inputs J1, J2, it just passes through the entire first rectifier circuit G11.
Figure 4 shows a circuit diagram of an indication module for indicating the status of the regulation module.
The indicating module 31 comprises: an eighth diode DH1 for indicating the state at the first input connector CH11; and an eighth diode DH2 for indicating the state at the second input connector CH21. In each modulation circuit M11, M12, the sixth resistor RF1 and the eighth diode DH1 are connected in series and in the forward direction as a side circuit between the sixth diode DF1 and the seventh diode DG1 of the set of electronic means. The eighth indication diode DH1 may indicate requirement for heating at the first and/or second input connectors CH11, CH21 by a yellow light.
The indication module 31 further comprises a tenth indication diode DJ1 for indicating the power supply status of the regulation module, connected in the forward direction as a side circuit between the sixth capacitor CF1 and the eighth resistor RH1 of the action circuit AC. The tenth indication diode DJ1 may indicate active power supply to the regulation module at the first power connector L by a green light.
The indication module 31 further comprises a twelfth indication diode DL1 for indicating the connection status of the second relay KB to the external control system. The twelfth indication diode DL1 is connected in the forward direction as a side circuit between the seventh capacitor CG1 and the eleventh resistor RK1. The twelfth indication diode DL1 may indicate the closed state of at least one switch on the switch side of the second relay KB, i.e. a current flowing between the first input connector CH11 and the first output connector OUT1, and/or between the third input connector CH21 and the second output connector OUT2, with a red light.

Industrial applicability

The above-described regulation module can be used to regulate power supply of heating elements of electrical appliances in restaurants or households.

List of reference signs

A: first signal connector
AC: action circuit
B: second signal connector
C: first action connector
CAn to CGn: first to seventh capacitor
CH11, CH12, CH21, CH22: first to fourth input connector
D: second action connector
DAn to DLn: first to twelfth diode
E1, E2: Graetz rectifying bridge
G11, G12: first and second rectifier circuit
J1 to Jn: input/output
KAn, KB: first and second relay
L: first power connector
LAn, LBn: first and second inductor
M11, M12: first and second modulation circuit
N: second power connector
OUT1, OUT2: first and second output connector
QAn: MOSFET transistor
QBn, QCn: first and second NPN transistor
RAn to RMn: first to thirteenth resistor
T1, T2: transformer connector
Un: optocoupler
Vn: varistor
1, 2: heating element of a regulated device
3: control system
10: regulation module
11, 12: first and second rectifier module
21: relay module
31: indication module

Claims

A regulation module for regulating power supply of an external regulated device by means of a feedback signalling with an external control system, in particular for regulating power supply of one or two heating elements of the regulated device, characterised in that the regulation module comprises: a first, second, third and fourth input connector (CH11, CH12, CH21, CH22) connectable to the regulated device; a first and second output connector (OUT1, OUT2) connectable to the regulated device; a first and second power connector (L, N) connectable to a power source; a first and second signal connector (A, B) connectable to the control system; and a first and second action connector (C, D) connectable to the control system; wherein the regulation module further comprises:
a. a first rectifier module (11) comprising a first rectifier circuit (G11) for rectifying said power supply of the external regulated device to direct current, having:
i. a first input (J1) connected to the first input connector (CH11);

ii. a second input (J2) connected to the second input connector (CH12);

iii. a first output (J4);

iv. a second output (J3); and

v. a Graetz rectifier bridge (E1) connected on the input side between the first and second input (J1, J2), and on the output side between the first and second output (J4, J3);

b. a second rectifier module (12) comprising a second rectifier circuit (G12) for rectifying said power supply of the external regulated device to direct current, having:
i. a first input (J5) connected to the third input connector (CH21);

ii. a second input (J6) connected to the fourth input connector (CH22);

iii. a first output (J8);

iv. a second output (J7); and

v. a Graetz rectifier bridge (E2) connected on the input side between the first and second input (J5, J6), and on the output side between the first and second output (J8, J7);

c. a relay module (21) comprising a first modulation circuit (M11) for modulating pulse width of said rectified power supply of the external regulated device, having:
i. a first input (J9) connected to the first output (J4) of the first rectifier module (11);

ii. a second input (J10) connected to the second output (J3) of the first rectifier module (11);

iii. a first output (J11) connected to the first signal connector (A);

iv. a second output (J12) connected to the second signal connector (B);

v. a first set of electronic means connected between the first and second input (J9, J10) and suitable for modulating pulse width of the rectified power supply of the external regulated device from an input voltage with an amplitude in the range of 12 to 350 V DC to a modulated output voltage with a constant amplitude, preferably in the range of 4 to 6 V DC, and with a variable pulse width; and

vi. a first relay (KAn) comprising: on a control side, an electromagnetic element connected to said set of electronic means; and on a switch side, a switch connected between the first and second outputs (J11, J12);

wherein the relay module (21) further comprises a second modulation circuit (M12) for modulating pulse width of said rectified power supply of the external regulated device, having:
vii. a first input (J13) connected to the first output (J8) of the second rectifier module (12);

viii. a second input (J14) connected to the second output (J7) of the second rectifier module (12);

ix. a first output (J15) connected to the first signal connector (A);

x. a second output (J16) connected to the second signal connector (B);

xi. a second set of electronic means connected between the first and second input (J13, J14) and suitable for modulating pulse width of the rectified power supply of the external regulated device from an input voltage with an amplitude in the range of 12 to 350 V DC to a modulated output voltage with a constant amplitude, preferably in the range of 4 to 6 V DC, and with a variable pulse width; and

xii. a first relay (KAn) comprising: on a control side, an electromagnetic element connected to said set of electronic means; and on a switch side, a switch connected between the first and second outputs (J15, J16);

wherein the relay module (21) further comprises an action circuit (AC) for switching the external regulated device, having:
xiii. a first input (J17) connected to the first input connector (CH11);

xiv. a second input (J18) connected to the third input connector (CH21);

xv. a first output (J19) connected to the first output connector (OUT1);

xvi. a second output (J20) connected to the second output connector (OUT2);

xvii. a power input connected to the first power connector (L) and the first signal connector (A);

xviii. a power output connected to the second power connector (N) and the second action connector (D);

xix. an action input connected to the first action connector (C); and

xx. a second relay (KB) comprising: on a control side, an electromagnetic element connected between the action input and the power output; and on a switch side, a first switch connected between the first input (J17) and the first output (J19), and a second switch connected between the second input (J18) and the second output (J20), wherein the second relay (KB) is of the double-pole double-throw type.
The regulation module according to claim 1, characterised in that the first input (J9, J13) of the first and second modulation circuit (M11, M12) is positive, the second input (J10, J14) of the first and second modulation circuit (M11, M12) is negative, wherein the set of electronic means of the first and second modulation circuit (M11, M12) comprises:
a. a first resistor (RAn) and a Zener first diode (DAn) in the reverse direction, connected in series between the first input (J9, J13) and the second input (J10, J14);

b. a MOSFET transistor (QAn) with an enhancement type N channel, having a "drain" (D), "source" (S) and "gate" (G) electrode, wherein the "source" (S) electrode is connected to the second input (J10, J14) and the "gate" (G) electrode is connected between the first resistor (RAn) and the Zener first diode (DAn);

c. a third diode (DCn) connected in the forward direction between the drain electrode (D) of the MOSFET transistor (QAn) and the first input (J9, J13);

d. a first polarized capacitor (CAn) connected with a positive pole to the first input (J9, J13);

e. a first inductor (LAn) connected between the "drain" electrode (D) of the MOSFET transistor (QAn) and a negative pole of the first polarized capacitor (CAn);

f. a second and third resistor (RBn, RCn) connected in series to the negative pole of the first polarized capacitor (CAn) and the first inductor (LAn);

g. a first NPN transistor (QBn) having a "collector" (C), "base" (B) and "emitter" (E) pin, where the "emitter" pin (E) is connected to the negative pole of the first polarized capacitor (CAn) and the first inductor (LAn), and the "base" pin (B) is connected between the second and third resistor (RBn, RCn);

h. a Zener fourth diode (DDn) and a second capacitor (CBn) connected in parallel and in the forward direction between the third resistor (RCn) and the positive pole of the first polarized capacitor (CAn), wherein the Zener fourth diode (DDn) in the forward direction and the second capacitor (CBn) are further connected to the electromagnetic element of the control side of the first relay (KAn);

i. a fourth resistor (RDn) and a third capacitor (CCn) connected in parallel to the Zener fourth diode (DDn) and the second capacitor (CBn); and

j. an optocoupler (Un) comprising a fifth diode (DEn) and a second NPN transistor (QCn) having a "collector" (C), "base" (B) and "emitter" (E) pin, wherein an optical link can be formed between the fifth diode (DEn) and the "base" (B) pin of the second NPN transistor (QCn), wherein the fifth diode (DEn) is connected in the forward direction between the fourth resistor (RDn) and the "collector" pin (C) of the first NPN transistor (QAn), wherein the "collector" pin (C) of the second NPN transistor (QCn) is connected to the "gate" electrode (G) of the MOSFET transistor (QAn) between the first resistor (RAn) and the Zener first diode (DAn), wherein the "emitter" pin (E) of the second NPN transistor (QCn) is connected to the second input (J10, J14) and the Zener first diode (DAn), wherein the "emitter" pin (E) of the second NPN transistor (QCn) is further connected to the "base" pin (B) of the second NPN transistor (QCn) and a fifth resistor (REn) is connected between the "emitter" pin (E) and the "base" pin (B).
The regulation module according to claim 2, characterised in that the set of electronic means of the first and second modulation circuit (M11, M12) further comprises:
a. a sixth diode (DFn) connected in the forward direction between the Zener fourth diode (DDn) and the electromagnetic element of the control side of the first relay (KAn), the electromagnetic element being further connected between the "emitter" pin (E) of the first NPN transistor (QBn), the negative pole of the first polarized capacitor (CAn), the first inductor (LAn) and the second resistor (RBn);

b. a fourth polarized capacitor (CDn) connected in parallel to the electromagnetic element of the control side of the first relay (KAn), wherein the positive pole is connected to the sixth diode (DFn) and the negative pole is connected between the "emitter" pin (E) of the first NPN transistor (QBn), the negative pole of the first polarized capacitor (CAn), the first inductor (LAn) and the second resistor (RBn);

c. seventh diode (DGn) connected in parallel to the fourth polarized capacitor (CDn) and the electromagnetic element of the control side of the first relay (KAn), and at the same time in the forward direction between the negative and positive pole of the fourth polarized capacitor (CDn).
The regulation module according to claim 2, characterised in that it further comprises an indication module (31) for indicating a state of the regulation module, wherein the set of electronic means of the first and second modulation circuit (M11, M12) further comprises a sixth resistor (RFn), and the indication module (31) further comprises an eighth diode (DHn) for indicating a state at the first or second input connector (CH11, CH21), wherein the sixth resistor (RFn) and the eighth diode (DHn) are connected in series and in the forward direction as a side circuit between the sixth diode (DFn) and the seventh diode (DGn) of the set of electronic means.
The regulation module according to any one of the preceding claims, characterised in that the rectifying circuit (G11, G12) further comprises a seventh resistor (RGn) and a second inductor (LBn) connected in series between the second input (J2, J6) and the input side of the Graetz rectifying bridge (En).
The regulation module according to any one of the preceding claims, characterised in that the rectifying circuit (G11, G12) further comprises a varistor (Vn) connected in parallel between the first and second inputs (J1, J2, J5, J6) and the input side of the Graetz rectifying bridge (En).
The regulation module according to any one of the preceding claims, characterised in that the rectifier circuit (G11, G12) further comprises a fifth capacitor (CEn) connected in parallel between the first and second outputs (J4, J3, J8, J7) and the output side of the Graetz rectifier bridge (En).
The regulation module according to any one of the preceding claims, characterised in that it further comprises an indication module (31) for indicating a state of the regulation module, wherein the action circuit (AC) further comprises:
a. an eighth resistor (RHn), a ninth diode (Din) and a sixth capacitor (CFn) connected in series and in the forward direction between the power input and the power output of the action circuit (AC);

b. a ninth and tenth resistor (Rln, RJn) connected in series with each other and in parallel to the sixth capacitor (CFn);
wherein the indication module (31) comprises a tenth indication diode (DJn) for indicating the power supply status of the regulation module, connected in the forward direction as a side circuit between the sixth capacitor (CFn) and the eighth resistor (RHn).
The regulation module according to any one of the preceding claims, characterised in that it further comprises an indication module (31) for indicating a state of the regulation module, wherein the action circuit (AC) further comprises:
a. an eleventh resistor (RKn), an eleventh diode (DKn) and a seventh capacitor (CGn) connected in series and in the forward direction between the action input and the power output of the action circuit (AC);

b. a twelfth and thirteenth resistor (RLn, RMn) connected in series with each other and in parallel to the seventh capacitor (CGn);
wherein the indicating module (31) comprises a twelfth indicating diode (DLn) for indicating the connection status of the second relay (KB) to the external control system, wherein the twelfth indicating diode (DLn) is connected in the forward direction as a side circuit between the seventh capacitor (CGn) and the eleventh resistor (RKn).