High voltage output isolation module
A technology of output isolation and high voltage, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, etc., can solve problems such as low efficiency, inability to achieve output constant current, and large volume of switching booster modules, etc., to achieve the goal of using Easy maintenance, long-term short-circuit protection, and small size
Inactive Publication Date: 2018-01-26
陕西普洛帝测控技术有限公司
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[0002] Most of the switching boost modules on the market are large in size and low in efficiency. Switching power supplies using discrete components cannot achieve constant output current. For this reason, a high-voltage output isolation module is needed to reduce the volume of the power supply and improve the efficiency of the power supply. Stability for long-term short-circuit protection
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] see figure 1 , In the embodiment of the present invention, a high-voltage output isolation module adopts SMT surface mount technology and a four-layer board technology structure, and its performance is stable and reliable.
[0019] see Figure 2-3 , in an embodiment of the present invention, a high voltage output isolation module includes a control chip U5-1, the pin 1 of the control chip U5-1 is connected to the capacitor C22, the capacitor C22 is gro...
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The invention discloses a high voltage output isolation module. The high voltage output isolation module comprises a control chip U5 and is characterized in that the pin 1 of the control chip U5 is connected with a capacitor C22, the capacitor C22 is grounded, the pin 3 of the control chip U5 is connected with one ends of a capacitor C15, a resistor R12, a resistor R6 and a capacitor C24, the other end of the capacitor C15 is connected with the pin 4 of the control chip U5, the other end of the resistor R12 is connected with a power input end, and the other end of the resistor R6 is connectedwith a resistor R9 and the drain of an MOS transistor Q1. The high voltage output isolation module has the advantages that the module adopts a step-down topological structure, output voltage adjustingis achieved by using PWM to directly control the MOS transistor, and the module is high in reliability, small in power supply size and stable in performance; preset current detection resistance is output, an optical coupler can be used to adjust the signal strength of the PWM by detecting output currents so as to achieve constant-current output, and long-term short-circuit protection can be achieved; the module adopting modular design is convenient to use and maintain, rich in interface, small in size, flexible in configuration and low in cost.
Description
technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a high-voltage output isolation module. Background technique [0002] Most of the switching boost modules on the market are large in size and low in efficiency. Switching power supplies using discrete components cannot achieve constant output current. For this reason, a high-voltage output isolation module is needed to reduce the volume of the power supply and improve the efficiency of the power supply. Stability, to achieve long-term short-circuit protection. Contents of the invention [0003] The purpose of the present invention is to provide a high-voltage output isolation module, modular design, convenient use and maintenance, abundant interfaces, small size, flexible configuration, low cost, and the advantages of long-term short-circuit protection can be realized, so as to solve the problems raised in the above-mentioned background technology. The problem. ...
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IPC IPC(8): G05F1/445H02M1/00
Inventor 郭朋辉李立志
Owner 陕西普洛帝测控技术有限公司