AN ELECTRONIC SYSTEM THAT OPTIMIZES POWER CONSUMPTION OF COOKING APPLIANCES IN STANDBY MODE.

Abstract

The invention is a power management circuit for a cooking appliance comprising a mains input (1); a main capacitor (12) to which the mains input (1) is connected to transmit alternating current; a rectifier (2) to which the main capacitor (12) is connected in series; a load (3) to which the rectifier (2) supplies direct current; and a load sensor (26) connected to the input of the load (3) to check the load status. The power management circuit comprises an auxiliary capacitor (14) connected in parallel to the main capacitor (12) to form an adaptive load balancer module (10), and a switch (16) connected to which the auxiliary capacitor (14) is selectively connected; a switch driver (28) that opens the switch (16) in a standby state when there is no load demand and closes the switch (16) when there is a load demand; and a microcontroller (22) that operates the switch driver (28) to open and close the switch according to the load demand transmitted by the load sensor (26).

Description

1 TARIFF OPTIMIZING POWER CONSUMPTION OF COOKING APPLIANCES IN STANDBY MODE ELECTRONIC SYSTEM TECHNICAL FIELD The invention describes a circuit design and method for managing the power consumption of a cooking appliance in standby mode. It is related to. STATE OF THE ART In conventional technology, this is primarily used to power control circuits that require low current. AC-DC power supplies that utilize capacitive drop impedance are widely used. Here, only half-waves (positive or negative) of the mains voltage are rectified and 15 Stabilization via a Zener diode emerges as a typical solution. The Zener diode is located in the output stage. A diode adjusts the desired output voltage, and a capacitor (usually electrolytic) is added to the circuit. By connecting them in parallel, the voltage fluctuation is reduced. With this approach, at the input... A series capacitor (charging capacitor) increases the value of the current drawn by the circuit. By determining this, it implements the basic current limiting of the system. 20 However, the most important aspect of classic capacitive pump type power supplies is... One of the problems is that the load (e.g., digital control system) has low current requirements. even then, a constantly and often unnecessarily high current is supplied from the grid. This is the situation where the device draws relatively high power even in standby mode. This leads to increased spending and international energy efficiency standards are becoming increasingly stricter. With this trend, this approach has become a significant disadvantage, especially in household electrical appliances. It is transforming. Typical examples in the literature highlight the simplicity and low cost of these power sources. 30 Although it is preferable, adjustable output current is needed or the power supply may not be suitable. Classic capacitive capacitors are expected to consume as little energy as possible in standby mode. The power supply method appears to be limited. A single Zener diode and a single charging capacitor. Using this method, it is difficult to provide the different current levels required for different operating phases. The fact that the capacitor initially exhibits a short-circuit effect in the circuit also presents additional design challenges. 35 It is able to create. 2 Additionally, increasing the capacitance of the charging capacitor in question, especially in the initial circuit... When energized, larger transient currents flow, thus making the circuit elements more efficient. This causes it to be exposed to high thermal and electrical loads. Therefore, it is both costly and From a reliability standpoint, using a constant and large capacitive drop is undesirable. It can create. As stated in the ITTO20070220A1 document, the known capacitive pump 5 Although various modifications have been proposed to improve the efficiency of the circuits, the ones used The limitations inherent in the capacitor and Zener-based structure are precisely... It has not been resolved. A BRIEF DESCRIPTION OF THE INVENTION The aim of the invention is to increase the energy efficiency of cooking appliances in standby mode. To achieve the aforementioned purpose, the invention involves a network input; the network input's electricity is supplied by alternating current. a main capacitor to which current is transmitted; a capacitor connected in series with the main capacitor. rectifier; a load to which the rectifier supplies direct current; in a way that monitors the load condition. This is a power management circuit for a cooking appliance that includes a load sensor connected to the load input. Power The control circuit forms an adaptive load balancer module by connecting 20 to the main capacitor. an auxiliary capacitor connected in parallel and the auxiliary capacitor being selectively switched into the circuit. a connected switch; a switch that turns on in a standby state where there is no load demand and when there is a load demand A switch driver that closes the switch when the load demand is detected by the load sensor. a switch that operates the key of the switch it is connected to by turning the switch on and off It includes a microcontroller. Thus, depending on the power demand of the device, an auxiliary capacitor 25 It switches on and off to increase efficiency and saves unnecessary energy in standby mode. It prevents consumption. In a preferred configuration of the invention, the input to the grid and the alternative input from the grid are connected. It includes a voltage sensor that reports the current value to the microcontroller, and the voltage sensor has a capacity of 30 If the current transmitted to the microcontroller is below a predetermined threshold value, the switch is activated. The driver is configured to turn the switch off. Thus, at the mains input... The alternating current is continuously monitored by the microcontroller until the specified threshold value is reached. If the voltage drops below this level, the system automatically switches off the auxiliary capacitor. It activates and provides the necessary energy. 35 3 In a preferred configuration of the invention, the microcontroller detects a predetermined threshold value. The key driver is configured to unlock the key when the limit is exceeded. Thus, when the current value monitored by the microcontroller exceeds a predetermined threshold value The system automatically switches the auxiliary capacitor off the circuit by opening the switch, thus preventing overcurrent. It prevents damage that may be caused by current and ensures that devices operate safely and efficiently. 5 In a preferred configuration of the invention, the predetermined threshold value must be at least 210 volts. This allows the system to reliably identify its normal operating voltage. And when the voltage drops below this level, the auxiliary capacitor is automatically activated. It allows entry. 10 In a preferred configuration of the invention, the key driver closes the key. For operation, the load demand created by the load must be at least 20 watts. Thus, the switch The driver switches off the auxiliary capacitor only when there is sufficient power demand. It activates and ensures the system operates efficiently. 15 In a preferred configuration of the invention, if the load demand falls below 20 watts The key driver is configured to unlock the vehicle. This results in a compact design. The structure is obtained in this way. Thus, the key driver saves energy by switching the key on and off. This enables the system to operate more efficiently under low power conditions. 20 In a preferred configuration of the invention, the switch is connected in series with the auxiliary capacitor. This results in a more stable system by balancing voltage fluctuations in the circuit. This design ensures reliable operation. This structure prevents sudden voltage changes from having negative effects on the switch. It minimizes their effects and improves overall performance. 25 In the preferred configuration of the invention, the mains input voltage is 110-220 volts. This enables the device to adapt to a wide range of different voltage standards. This flexibility ensures the device operates safely and stably in various usage environments. It ensures seamless operation in various geographical regions and with different power sources. 30 35 BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a schematic representation of the power management circuit of a household oven. 40 4 DETAILED DESCRIPTION OF THE INVENTION In this detailed description, the subject matter of the invention is developed without any restrictions and 5 The explanation is given with references to examples simply to better illustrate the topic. Figure 1 shows the power management circuit structure of a household oven. The circuit structure includes a network input (1); a main capacitor (12) through which the network input (1) transmits alternating current. There is an auxiliary capacitor (14) connected in parallel to the main capacitor (12). It is located. It is connected in series with the auxiliary capacitor (14) and selector circuit-activated. There is a switch (16). The mains input (1) detects the output current and load demand and It is connected to a smart power management system (20) that will enable the switch (16) to be turned on and off. The intelligent power management system (20) consists of a microcontroller (22), a voltage sensor (24), and a load It consists of a sensor (26) and a switch driver (28). 15 during the control operation The intelligent power management system (20) is active. To ensure this, the current from the rectifier is active. a circuit in which an intelligent power management system is arrayed from a power source (not shown) It is powered to the circuit board (not shown). It supplies the circuit board with a low voltage of 5 volts. The voltage sensor, which detects the current coming from the mains input (1), detects the current (24). transmits to the microcontroller (22). The microcontroller (22) transmits the current from the voltage sensor (24) to 20 Periodic comparisons are made with a predetermined threshold value of 210 volts. Incoming current threshold. If the value is below this, the microcontroller (22) switches the driver (28) connected to it. By operating it, it closes the switch (16) in the circuit and supplies the auxiliary capacitor (14) with the necessary energy. It activates the microcontroller (22) to ensure that the incoming current exceeds the threshold value. It periodically compares the current from the voltage sensor (24) with the predetermined threshold value. 25 If the incoming current is above the threshold value, the microcontroller (22) switches connected to it. By operating its driver (28), it turns on the switch (16) in the circuit and the auxiliary capacitor (14) It disconnects the main capacitor (12) from the circuit. The main capacitor is connected to a rectifier that converts alternating current to direct current. (2) is connected in series. The current passing through the rectifier (2) goes to a load (3). The demand created by the load (3) The load is detected by the sensor (26) and transmitted to the microcontroller (22). The microcontroller (22) 30 with the load demand from the load sensor (26) and the predetermined threshold value of 20 watts It compares periodically. If the load demand is above the threshold value, the microcontroller (22), By activating the switch driver (28) connected to it, it closes the switch (16) in the circuit and The auxiliary capacitor (14) is activated to provide the necessary energy. The load (3) creates The demand is periodically detected by the load sensor (26) and transmitted to the microcontroller (22). 35 The microcontroller (22) detects the load demand from the load sensor (26) and the predetermined threshold It periodically compares the value. If the load demand is below the threshold value, a standby state is activated. microcontroller (22) activates the switch driver (28) connected to it, thus activating the circuit. It switches the switch (16) on and disconnects the auxiliary capacitor (14). REFERENCE NUMBERS 1. Network input 2 Rectifiers 3 Loads Adaptive load balancer module 12 Main capacitors 14 Auxiliary capacitors 16 Keys Intelligent power management system 22 Microcontrollers 24 Voltage sensors 26 Load sensors 28 Key driver

Claims

6 REQUESTS 1- A network input (1); the network input (1) is connected in such a way that it transmits alternating current electricity. a main capacitor (12) to which the main capacitor (12) is connected in series rectifier (2); a load (3) to which the rectifier (2) supplies direct current; load condition 5 a cooking appliance containing a load sensor (26) connected to the load (3) input in a controlled manner It is a power management circuit and its feature is that it forms an adaptive load balancer module (10). In the figure, an auxiliary capacitor (14) is connected in parallel to the main capacitor (12) and a switch (16) connected in such a way as to selectively activate the auxiliary capacitor (14); load switch (16) on when there is no demand in stand-by and switch 10 when there is a load demand a switch driver (28) that closes the switch (16); the load transmitted by the load sensor (26) According to the request, the switch of the key driver (28) to which it is connected can be switched on and off. It is characterized by containing a microcontroller (22) that runs it. 2- Power management circuit for a cooking appliance conforming to Claim 1, its feature is that it connects to the mains input at 15 (1) connected and reporting the alternating current value from the grid to the microcontroller (22) it includes a voltage sensor (24) and the voltage sensor (24) is connected to the microcontroller (22) If the current it transmits is below a predetermined threshold value, it is sent to the switch driver (28) The key (16) is configured to be switched off. 3- Power management circuit for a cooking appliance suitable for any of the previous requirements. The feature of the microcontroller (22) is that when the predetermined threshold value is exceeded, the switch The driver (28) is configured to turn on the key (16). 4- Power management circuit 25 for a cooking appliance suitable for any of the previous requirements. Its defining characteristic is that the predetermined threshold value is at least 210 volts. 5- Power management circuit for a cooking appliance suitable for any of the previous requirements. its feature is that the key driver (28) is operated in such a way that the key (16) is switched off. The load demand created by the load (3) must be at least 20 watts. 30 6- Power management circuit for a cooking appliance conforming to claim 5, with the feature of a load demand of 20 If the wattage drops below 28, the switch driver (28) switches (16) on. It is configured in this way. 35 7- Power management circuit for a cooking appliance suitable for any of the previous requirements. Its feature is that the switch (16) is connected in series with the auxiliary capacitor (14). 7 8- Power management circuit for a cooking appliance suitable for any of the previous requirements. Its characteristic is that the mains input (1) voltage is 110-220 volts.

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