Induction Heating Generator Shunt Element PCB Integration
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Solution Overview
Problem
Existing induction heating generators are not compactly arranged due to the separation of integrated circuits, preventing a unified printed circuit board configuration.
Innovation Solution
A shunt element is connected in series with the first capacitor series and the semiconductor switches, allowing for detection of parameters by the control circuit block, which includes a microcontroller and analogue digital converter, enabling a compact arrangement of components on a single printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If components are arranged on multiple printed circuit boards, then ease of manufacture is improved, but device complexity increases and compact arrangement is not achieved
Solution Approach 1:
The patent merges multiple previously separate components (semiconductor switches, capacitors, diodes, shunt element, and control circuit block) onto a single printed circuit board. This consolidation reduces the number of separate circuit boards from multiple to one, thereby reducing device complexity while maintaining ease of manufacture through standardized PCB assembly processes.
2Device complexity
If components are integrated on a single printed circuit board, then compact arrangement is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The shunt element serves as an intermediary component that facilitates precise current measurement and control. By strategically placing the shunt element in series with the semiconductor switches and connecting it to the control circuit block, the system achieves accurate phase angle delay detection and power estimation, which are critical for maintaining manufacturing precision in the integrated compact design.
3Measurement precision
If shunt element is connected in series with semiconductor switches, then detection precision is improved, but device complexity increases
Solution Approach 1:
The shunt element performs multiple functions simultaneously: it serves as a current sensing element for detection precision, as part of the circuit topology for compact arrangement, and as a connection point for the control circuit block. This multi-functionality allows improved measurement precision without proportionally increasing device complexity, as the same component serves multiple purposes in the integrated design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for the detection of phase angle delay and power estimation, facilitating a compact and efficient induction heating generator design without disrupting its operations.
Implementation Method 1
the control circuit block may comprise a detection circuit for detecting a voltage drop of the shunt element
Implementation Method 2
an induction heating generator according to claim 1
Implementation Method 3
the present invention relates to an induction heating generator
Data Source
AI summary
An induction heating generator includes a rectifier circuit (10). Four capacitors (C1, C2, C3, C4) form a bridge circuit between two output terminals of the rectifier circuit (10). The bridge circuit includes a first capacitor series (C1, C2) and a second capacitor series (C3, C4). An induction coil (L) is interconnected in the center of the bridge circuit. At least two semiconductor switches (S1, S2) are connected in each case parallel to one of the capacitors (C1, C2) of the first capacitor series (C1, C2). The induction heating generator includes a control circuit block (14, 16, 18, 20, 22) for controlling the control electrodes of the semiconductor switches (S1, S2). A shunt element (SE) is connected in series with the first capacitor series (C1, C2).