The Control Method of Trimming and Adjusting the Input Resistance of Power Devices
A technology of power device and input resistance, applied in the field of electronics, can solve the problems of high cost, long time period, huge time and economic cost, and achieve the effect of reducing production cost, simple implementation and wide application range.
Active Publication Date: 2018-10-26
济南安海半导体有限公司
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Problems solved by technology
[0003] At present, the method of modifying the input resistance can only be realized by re-taping the chip. On the one hand, this method takes a long time period, and on the other hand, the cost is high; the difficulty of power device design is the electrical parameters such as withstand voltage and current of the power device, but In practical applications, re-taping is often required because of the mismatch of input resistance. This method is very time-consuming and economical for both power device suppliers and customers. The gain outweighs the gain
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[0025] In one embodiment, the method comprises the steps of:
[0026] Send an input signal 102 to the resistor array module connected between the power device input terminal 101 and the power device 105 according to user operation;
[0027] According to the input signal 102, the resistance array module sets the connected or disconnected state of each minimum resistance unit in the resistance array module, so that the resistance value of the resistance array module conforms to the user's operation setting.
[0028] Wherein, the power device 105 is a field effect transistor, and the field effect transistor may be a MOSFET, a JFET or an IGBT. The resistance array module includes such as figure 2 Array controller 103 and M x N resistor array 104 are shown. The array controller 103 is used to set the connected or disconnected state of each minimum resistance unit in the resistance array module according to the input signal 102 . The M×N resistor array 104 includes M rows of par...
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The invention relates to a trimming power device input resistance control method, and belongs to the technical field of electrons. According to the method, connection or disconnection of various minimum resistance units in a resistance array module is set by the resistance array module according to obtained input signals, resistance values of the resistance array module meet setting of user operation, so that power device input resistance is conveniently trimmed to obtain different input resistance values, tape-out is only performed once on a specific power device, and production cost is effectively reduced. The control method is simple and convenient in control mode and quite wide in application range.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to the field of integrated circuit and semiconductor technology, in particular to a control method for trimming and adjusting the input resistance of a power device. Background technique [0002] With the rapid development of electronic information technology, the application of power devices is becoming more and more popular. At present, semiconductor devices tend to be miniaturized, high-density, and multi-functional, and the refinement of functions requires higher and higher matching requirements for various parameters of power devices. Generally, the gate and source of power semiconductor devices are capacitive structures, and the parasitic inductance of the gate circuit cannot be eliminated. In order to avoid unnecessary oscillation of the gate circuit under the excitation of the driving pulse, it is often necessary to connect a specific resistance value in series. The siz...
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IPC IPC(8): G05F1/00
CPCG05F1/00
Inventor 胡欣黄昕张帅
Owner 济南安海半导体有限公司