Control method and control circuit for standby power consumption of power supply module and power supply module
A power module and standby power consumption technology, which is applied in the direction of high-efficiency power electronic conversion, output power conversion device, electrical components, etc., can solve the problem of large standby power consumption of power modules, and achieve the effect of reducing standby power consumption
Active Publication Date: 2015-06-03
平湖市四通电源厂
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[0004] However, it was found in practice that figure 1 In the control circuit shown, the auxiliary source of the primary side of the power module (that is, PSU1 and PSU2) is powered from the input port of the power module, and the auxiliary source of the secondary side is powered from the output port of the DC / DC converter, so the power module The standby power consumption of the power module is almost all the power consumption of the auxiliary source on the primary side, which makes the standby power consumption of the power module very large
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[0045] 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.
[0046] The embodiment of the invention discloses a method for controlling standby power consumption of a power supply module, a circuit, and a power supply module, which can effectively reduce the standby power consumption of the power supply module. Each will be described in detail below.
[0047] see figure 2 , figure 2 It is a structural diagram of a control circuit for standby power consumption of a power module disclosed in an embodiment of the presen...
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The invention relates to the field of power supply modules and discloses a control method and a control circuit for standby power consumption of a power supply module and the power supply module. The method comprises the steps of adding a voltage isolation converting circuit in the power supply module, closing a PFC (power factor correction) circuit and a DC / DC (direct current) converter firstly respectively by primary and secondary side DSP (digital signal processor) chips after the power supply module receives a standby command sent by a monitoring module, then outputting an enable signal to the voltage isolation converting circuit by the secondary side DSP chip, triggering the voltage isolation converting circuit to work and enabling the voltage isolation converting circuit to output a control signal to control a primary side auxiliary supply to be closed, so the standby power consumption of the power supply module can be effectively reduced.
Description
technical field [0001] The invention relates to the field of power supply modules, in particular to a control method, circuit and power supply module for standby power consumption of the power supply module. Background technique [0002] In the field of power modules, the power module has a standby power consumption index requirement, wherein, when the standby power consumption of the power module is small, the competitiveness of the power module in the market is also higher. At present, the industry usually uses a control circuit to control the standby power consumption of the power module, so as to better reduce the standby power consumption of the power module. [0003] Such as figure 1 In the control circuit shown, the power factor correction (Power Factor Correction, PFC) circuit of each power supply module (that is, PSU1 and PSU2) can output a DC voltage to a DC-to-DC (DC / DC) converter after inputting an AC voltage , so that the DC / DC converter can invert the DC volt...
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IPC IPC(8): H02M7/04
CPCH02M1/00H02M1/0035Y02B70/10
Inventor 周岿陈保国
Owner 平湖市四通电源厂