A power tube drive control circuit suitable for solid-state power controller

A drive control circuit, solid-state power technology, applied in the field of electronics, can solve problems such as transient high current failure to start normally, poor capacitive load capability, and large parasitic parameter dependence, so as to avoid the failure to start problem and improve the load capacity. , Improve the effect of capacitive load capacity
CN105406846BActive Publication Date: 2018-04-27BEIJING SATELLITE MFG FACTORY
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING SATELLITE MFG FACTORY
Publication Date
2018-04-27

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a power tube driving control circuit suitable for a solid-state power controller. The power tube driving control circuit comprises a switch-on / off circuit, a driving protection circuit, a transient suppression circuit, a slow switch-on circuit, a current sampling circuit, a freewheeling diode D2 and an MOS (Metal Oxide Semiconductor) transistor M1. Through adoption of the power tube driving control circuit, wrong switch-on / off actions of the MOS transistor M1 caused by a wrong power-on sequence can be avoided, and the problems of poor capacitive load capacity, high dependence on a parasitic parameter, failure in normal startup due to large transient current, and the like in an existing solid-state power controller are solved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of electronic technology and relates to a control circuit based on a MOS tube. Background technique

[0002] The solid-state power controller adopts the power tube as the core control switch, which has been widely used in various fields, and has the advantages of no contact, no arc, no noise, fast response, small electromagnetic interference, long life and high reliability. In a solid-state power controller, its power tube works in a full duty cycle switching state.

[0003] Because the traditional power tube control circuit works in the duty cycle adjustable mode, the control of the load current is realized by controlling the duty cycle, and the drive signal and power supply are guaranteed by strict power-on sequence, and the drive circuit does not need to consider large Current start-up protection and the sneak path problem of instantaneous micro-conduction of the power tube due to internal parasitic parameters of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More