DMOS level high voltage conversion circuit based on low voltage low voltage signal through the module will be converted to voltage signal, the low voltage high voltage DMOS gate source module comprises a control circuit and a high voltage DMOS, the high voltage DMOS gate source control circuit receives the first control signal of low voltage, high voltage DMOS control terminal and the second gate source control circuit of the end constant the voltage between the gate and the source voltage of DMOS, when the constant voltage is greater than the threshold voltage of DMOS high voltage, high voltage DMOS conduction. The utility model by direct control of high voltage DMOS between source and drain voltage level conversion circuit, can be timely turn off and turn the high voltage DMOS through effective guarantee in the whole temperature range, dispersion without concern for high voltage DMOS BCD process on resistance, high signal level conversion circuit module can achieve low voltage module guarantee, effectively improve the qualified rate of the high voltage integrated circuit, a simple realization method.
【技术实现步骤摘要】
【技术保护点】
基于高压DMOS实现的电平转换电路,其特征在于通过低压模块将低压信号转换为高压信号,所述基于高压DMOS实现的电平转换电路的低压模块包括高压DMOS栅源控制电路以及高压DMOS,所述高压DMOS栅源控制电路接收所述低压信号,高压DMOS栅源控制电路的第一控制端和第二控制端分别连接所述高压DMOS的栅极和源极,在高压DMOS的栅极与源极之间提供恒定电压,若所述恒定电压大于高压DMOS的阈值电压,由于所述第三电平VB向高压DMOS的漏极供电,高压DMOS导通。
【技术特征摘要】
【专利技术属性】
技术研发人员:冯宇翔,
申请(专利权)人:杭州士兰微电子股份有限公司,
类型:实用新型
国别省市:86[中国|杭州]
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