ES2630038T3 - Induction hob with time transfer control function and operation procedure - Google Patents

Abstract

An induction plate with a time transfer control function comprising: a plurality of switch units (S21-S26); A control unit (Uc2) electrically connected to the switch units (S21-S26) and configured to control each switch unit (S21-S26); characterized in that a plurality of burner units (L21-L24) classified in a first subgroup and a second subgroup are electrically connected to two corresponding switch units (L21-L24). Where the burner units (L21, L24) have a first burner unit (L21) and a second burner unit (L22), the first burner unit (L21) is electrically connected to a common contact of a first switch unit (S21) and a second switch unit (S22), and the second burner unit (L22) is electrically connected to a common contact of the second switch unit (S22) and a third switch unit (S23); where the control unit (Uc2) is configured 15 to provide complementary control signals (S21 ', S22') to turn on the first switch unit (S21) and the second switch unit (S22) and to maintain a high level in the third switch unit (S23) for controlling the first burner unit (L21) in the operating condition and the second burner unit (L22) in the non-operating condition; the control unit (Uc2) is also configured to provide complementary control signals (S22 ', S23') to turn on the second switch unit (S22) and the third switch unit (S23) and to maintain a high level in the first switch unit (S21) in order to control the second burner unit (L22) in the operating condition and the first burner unit (L21) in a non-operating condition, thus operating alternately in the form of a time transfer control the induction plate, where said first subgroup is different from said second subgroup.

Description

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Each of the burner units is an induction hob. A control unit (S300) is provided. The control unit turns on the switch units connected correspondingly to one or more burner units of a first subgroup of burner units selected from a plurality of burner units to control one or more burner units of the first subgroup in a condition operating (ie 5 under ignition control) and maintains a high level in the switch units connected correspondingly to one or more burner units of a second subgroup of burner units selected from a plurality of burner units for control one or more burner units of the second subgroup in a non-functioning condition, thus operating alternatively in the form of time transfer control the induction plate (S400), where the first subgroup is different from the second subgroup. It should be noted that the control unit provides complementary control signals to control two corresponding switch units, control the duty cycle proportions, and alternatively control the operating sequence of the burner units to implement the transfer control of induction plate time. In addition, the procedure also includes the following steps. A plurality of free circulation diodes is provided to provide free circulation routes when the switch units are under operation.

15 zero voltage switching. A plurality of auxiliary switch units is provided to provide time transfer control to the induction board when controlling the duty cycle.

In particular, each auxiliary switch unit is a bi-directional triode thyristor (also called a triode for alternating current, TRIAC) or a silicon-controlled rectifier (SCR), but not limited to this. 20 In conclusion, this description has the following advantages:

1. Switch units are provided to control the duty cycle ratio to implement a time transfer function on the induction board, thus simplifying the control circuit and reducing the amount of switch elements and the energy consumption of the plate;

25 2. Additional diode units are provided to improve inherent parasitic losses and electromagnetic interference when the switch units are under zero voltage switching operations; Y

3. The grounding scheme is used to provide noise isolation and to prevent noise

interfere with auxiliary switch units. 30

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Claims (1)

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