ELECTRONIC CIRCUIT AND INVERTER CIRCUIT

• Main Authors: HAYASHIGUCHI TADASHI, INO KAZUHIDE
• Format: Patent
• Language: English; Japanese
• Published: 21.05.2024
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; SEMICONDUCTOR DEVICES

To provide an electronic circuit having a novel structure.SOLUTION: A switching device 1 includes: a switching semiconductor chip 11 having a gate pad 14, a source pad 13, and a drain pad 12; a gate terminal 5 connected to the gate electrode; a source terminal 3 electrically connected to the source electrode; a drain terminal 6 electrically connected to the drain electrode; a sense source terminal 4 electrically connected to the source electrode; and an external resistance that is interposed in a current path between the source terminal and the source electrode, is interposed in a current path between the sense source terminal and the source pad and has a resistance value. The sense source terminal is not directly connected to the source pad but is indirectly connected to the source electrode via the external resistance. The sense source terminal is electrically connected to an overcurrent detection circuit.SELECTED DRAWING: Figure 1 【課題】新規な構成の電子回路を提供する。【解決手段】スイッチングデバイス１は、ゲートパッド１４、ソースパッド１３およびドレインパッド１２を有するスイッチング半導体チップ１１と、ゲート電極に接続されたゲート端子５と、ソース電極に電気的に接続されたソース端子３と、ドレイン電極に電気的に接続されたドレイン端子６と、ソース電極に電気的に接続されたセンスソース端子４と、ソース端子とソース電極との間の電流経路に介在され、かつ、センスソース端子とソースパッドとの間の電流経路に介在された、抵抗値を有する外部抵抗と、を含み、センスソース端子は、ソースパッドに直接的に接続されるのではなく、外部抵抗を介してソース電極に間接的に接続され、センスソース端子が過電流検出回路に電気的に接続されている。【選択図】図１